A diesel nerd can fix the reliability issues with Olds diesel - they get great fuel economy, but without a turbo they accelerate slowly. There are still a few running forever. I also heard of a aluminum Vega motor that is running great with 200,000 miles, but every time he used the Vega he checked the coolant level and meticulously changed the oil
@@timothykeith1367The Vega engine was fine once it was cast iron sleeved and the Oldsmobile diesel wakes up a bunch with a Paxton supercharger and a water trap!
Agree. The Olds diesel was like the Chernobyl of car engines. Engineers, mechanics, and general car nerds could explain the upside of diesel engines. But people only thought about the disaster. Unfortunately after the 2000's Americans were becoming more open to the idea of small diesels as a high mileage alternative to hybrids. Then Volkswagen happened and it was back to square one.
@@dmandman9 The thing about the HT4100 is that it was in an expensive, high end car. The Vega was a cheap car to begin with. Not excusing problems with it but it was a rather tin lizzy even if the engine didn't have so many issues. The cars the HT4100 were in were what would be at about $60,000 cars today, fully loaded luxury cars, and people who bought them had much higher expectations of performance and reliability, They also really didn't care about fuel economy and probably would have gladly paid a premium for better, stronger V8s if GM would have been willing to simply pass on the CAFE penalties to them in the sticker price keeping the fuel injected 368 without cylinder deactivation or other nonsense..
@joe6096 I agree with the fact that the expectations of a luxury car or higher then those of a entry-level car. But I was talking in absolute terms not accounting for the type of car. To be honest, I don't know the actual failure rate of each engine as far as percentage engines that failed. But the Vega was more widely known at the time because of the sheer numbers sold and the sheer numbers that failed. During the 70s, Vegas were everywhere. Show more people were affected and almost every shop encountered several Vegas smoking like mosquito trucks because of the scored cylinders. If a head gasket was blown, the lower engine was also toast. The ht4100 may I may not have had as many failures percentage wise, but it was not quite as widely known at the time because I think they failed at somewhat higher mileage than the Vegas although I could be mistaken about that. But since there were less Cadillacs than Vega sold, you are less likely to encounter one. And you may not have known how bad they were unless you owned one because you didn't just routinely see them smoking on the highway. But even people who never drove or repaired a Vega likely saw one smoking beside them in traffic or knew someone who had one if for no other reason than the fact that a lot more Vegas was sold in Cadillacs. Thankfully the ht4100 was restricted to Cadillacs and not installed in the Caprice or Monte Carlo . That would have been epic 😂
MAN, you aint kiddin'. Even the stinkin water pump was a drag. Oil smudge all over the place, those funky I rings in the thermostat housing, pulling the PS pump pulley, the crank pulley. What a messy job. Under powered dog. Worse than the V8-6-4 Caddy.
The LS5 was more than a lower HP version of the LS6. It had a 2 bolt main block, small port heads, a cast crankshaft, a cast iron intake manifold with a Quadrajet instead of a Holley 780, a hydraulic cam…
@@CurtisL8.3066 Actually it's not, change the oil appropriately and keep the PCV clean and those engines last a long time. They also have a really stout bottom end, so you can apply forced induction without breaking them.
I put 188k on a 2008 Chevrolet HHR with the 2.2 Ecotec in 4 years. I traded in that HHR on a 2012 Chevrolet Sonic hatchback with the 1.8 Ecotec & a 5 speed manual. Just turned 187k miles yesterday ( retired, so I don't drive as much ). As stated above, keep the oil changed every six months or 5,000 miles. I also use No-Ethanol gas & that seems too help as well.
I had a 1978 Beauville G20 sportvan with the emission delete option, which was a 4 bolt main 350 with a 4-barrel Q-jet, but no catalyst or EGR. The engine code was LS9😅
As mentioned before, I had a neighbor who bought a used Cutlass Ciera diesel and liked it so much that he bought two more of them. I'm pretty sure all of them were 1984-85, and it seems by then, the demons had been exorcised. These were 10 year old cars when he acquired them, well used, yet I remember them spending their time with the hoods closed and driving. I caught a ride in one once, and it wasn't bad at all. There were five of us in the car, and it percolated along without straining... I'm pretty sure trying to execute a pass on a two lane road would've revealed that we were dealing with 90 horsepower, though. I remember him claiming 40-ish miles per gallon. Though I'm not too keen on naturally aspirated diesels, I think you could do a lot worse than these. As GM has done so many times in the past, the product they were producing when it was discontinued, was the product it should've been at release.
This kinda story always has me wondering...what if I set up a 350 Olds diesel with ARP head studs, a fuel/water separator, the quick start glow plugs, two small turbochargers, and an intercooler? Could it potentially be a reliable, comfortably powerful, easy-starting, relatively fuel efficient engine?
My parents got a brand new 1979 Oldsmobile cutlass salon with the V8 diesel, my father loved that car until it started blowing out transmissions . I recall 3 transmissions in the first two years,something about to much torque from the diesel. I don’t remember any issues with head gaskets. Anyway the car only lasted about 6 years,we lived way upstate New York and the road salt destroyed the body. Keep up the good work……
My nomination is the gasoline Vega 2.3 liter L-11. GM could afford to make an antidote to Diesel engines, which were what all Oldsmobile based 5.7, 4.3 V8 and 4.3 V6 diesels were. But they couldn't afford to make a whole new line of Vega and Astre engines fail in the way the L-11 did. That was a tradgedy.
The G8 6.0L is actually a LS2 block with LS3 heads making it a L76 with DOD. So LS2 halfway! Regardless, the motor can easily pump out good power numbers and take an LSA blower easily to make mid 600 WHP, speaking from personal experience!
Gotta love a engine that comes with stop leak in the cooling system from the factory and required it to be added when changing the antifreeze, I'll never forget reading the tag on the radiator hold down that said the antifreeze needed a additive added that you had to get from GM and they included a part number I called the dealership and gave them the part number listed and asked what this special additive was and the parts guy said stop leak, that when you know you got a good motor
An example of the importance of a water separator was for diesel engines of that era, my 1982 Isuzu P'up diesel had one, where a couple of times a month I would pump out a few tablespoons of water, along with some bits of algae, too.
Ewww ! 🤢🤮 gross, like totally. Like, gag me with me with a spoon...........would have been the appropriate response at the time, especially if you had girls in the house that watched Square Pegs on tv
Back in high school I was a freshman in 96. A senior who came from a gearhead family had one of those frt wheel drive 4.3 diesels. Well he and his father went and got a old turbo from a late 70s buick, then the air cleaner/intake from a 301 turbo firebird. They somehow cobbled it together on the 4.3 diesel. It wasn't perfect by any means. You could hear leaks everywhere when the hood was popped. The thing was dialed in super rich. To compensate for the extra air from the turbo. The summit racing gauge said it got about 10lbs of boost. They ended up cutting holes in the hood to vent the heat from the turbski. From rough estimate he figured around 150hp and about 200ftlbs. I got to go for a ride twice and it was a blast. It was loud, smoky, dirty, and obnoxious. Seemed kinda quick for what it was. Keep in mind during this time everybody and there mom was driving a beat up g car with a 305/307 that only put out 140/150hp brand new. I was just getting into cars and engines so looking back I wish I would've paid attention to how they ran the plumbing. Oh well. Belive it or not it was the transmission that popped first. Those old gm transmissions were dialed in to the ftlb to take exactly as much torque as the top engine option. Being as that was probably the 2.8v6 with like 130ft lbs it's surprising he got 6mths out of this setup.
GM has some bad habits. They like to reuse old RPO codes. Like the LS2 as you stated. Also the LT1 that some know from the 1994-1996 Corvette, F-Body and B-Body cars. But the original LT1 came out in the 60s I believe. Then the LT4 was used recently and was also used in 1997 for a completely different engine. Their other bad habit is tweaking a vehicle over a few years, getting it right, then killing it off immediately. I love GM. But they've really done some stupid things through the years
the older LT-1 was the LT-1, the LT1 was introduced in 1993 for the Fbody had no hypen, and it was also in the caprice/roadmaster with iron heads. for a number of years it was a cop car favorite, because when they are running properly they were a torque monster for that era.
GM-Holden did the same thing, but someone clever was behind one of them. LF1 was first used on the 1986 VL Commodore to denote the 3.0L naturally aspirated 6 cylinder - the base spec motor, sourced from Nissan (RB30E). When they released the SIDI versions of the HFV6, they used a 3.0L version as the base motor in the VE2 Commodore, and it wore the same LF1 code. Same capacity, same cylinder count, but one was inline and the other a V.
The original LT-1 was introduced for 1970. It was a very high performance 350ci engine producing 370hp in the Corvette and 360hp in the Camaro Z28. It continued though to 1972 in lower horsepower form
The newer current diesels are awesome. The 6.6 duramax had an excellent reputation and my current gmc has a 3.0L 6cyl diesel and it is fantastic...smooth, quiet, torque, and amazing mpg.
I was working for a Buick dealer when the 5.7 Diesel came out. It was optional in the LeSabres & Electras. I don't think I ever seen one in a Riviera. It was a total disaster from the start. Injector pumps were a big problem a long with head gaskets. Also we had a few with broken crankshafts. One I remember the crank broke in the center main and the front 4 cylinders actually run. We had a whole row of customers diesel cars back in service waiting to be worked on almost daily and a lot of unhappy customers. The sad thing is by the end of the run on the 5.7 Diesel GM had worked out most of the bugs and was a much better engine but by then nobody was buying them. The 4.3 Diesel was in the Regals and Centurys And it was just as bad as the 5.7 diesel. So typical with GM and their insane rush to put out engines before they were ready them improve them afterwards and by then no body would buy them so the excuse was always to discontinue due to lack of demand instead of poor engineering
I wanted an LS2 for a swap, into my 1995 volvo 940 wagon. Not knowing about all the LS2 variations, I got one from a CTS-V, it was a little cheaper. For a volvo swap, I got very lucky. The exhaust manifolds, and placement of the alternator, power steering pump, and a/c compressor happened to be ideal. Any of those things being different would have complicated matters. The manual trans is a slightly odd version of what is basically a tremec t-56. The partially external shifter linkage was a minor nuisance, fixed by making it fully internal with some GTO and f-body trans parts. And ditching the dual mass flywheel. It's really fun. Just an LS2 tip...you got me with the video title! Love your videos. Strangely interesting facts about cars I didn't like that much when they were common. Sort of miss them, now.
That would have been a very sweet swap. I was on the hunt for a 740 wagon and could not find one that wasn't either thrashed or too expensive, or worse both! I finally bought a 95 960 and was pleased with my choice. A V8 would have made it even better.
Those 6.2 litre Diesels from the late 70s-early 80s were garbage too. Thet had glow plug isdues and would back fire and blow the starter off, breaking the engine block in the process ruining the engine requiring replacement. I went with a 3rd gen 7.4 litre gas engine(454 cubic inch.)to replace the Diesel.
LS1 was the motor that made a new generation of motorheads fall in love chevy/gm again. Anyone who was young in the 90s remembers how much the import tuner crowd had taken over the enthusiast market. The LS1 single handedly began to turn the tide. The 1st FF movie that came out in 2001 came out after the import tuner craze peaked. Hollywood was late to the party but I will give them credit. The 06 Dodge Charger would not have seen production if it wasnt for that movie.
Not sure.. The import craze started to die because those cars never really performed. The fake performance trend died like any fake trend. I would argue that the 5.0L Fox Mustangs turned things around starting in about 1983 or so. The '82-92 F-bodies were poor quality dog cars that looked great but performed poorly. The C4 Corvettes never generated any excitement. The C5 Corvette released in 1997 looked pretty plain until you took one for a drive. The new LS1 350 and 6 speed T56 trans took over. The LS1 was released in the F-bodies the next year, 1998, but those cars were terrible in every aspect. The LS engines really took off when they were release in the 2000 GM trucks, then those engines were available everywhere for cheap, but that was later in the 2000's...
@@joestang5550 they did perform in the turns but required $$ to get the straight line performance of an ls1 f body. In the curves though there was no contest. The hondas dsm cars and vwz of the 80s and 90s were a blast to drive. I had a 88 Prelude Si 4ws 5 speed and it was the most fun car Ive ever driven to this day. Low weight made them great which is why zero new cars are fun to drive now. Theyre all too heavy.
@@Henry_Jones If you took a current Civic Type R or a GR Corolla for a test drive, you would forget all about the '80's and '90's Japanese cars. Except the '90's Supra. :)
I’ve been a diesel tech for 20 years. When I was in my early 20s I wanted to get a diesel pickup so I bought a 82 c10 with a 6.2. That sent me down the rabbit hole of all the lesser known old/GM diesel stuff. Knew an old timer that owned an injection pump shop. He made good money salvaging olds 5.7 diesels and sending them out to Nebraska to be used as irrigation pump engines. Said they’d run forever in that application. And honestly, you can’t name a light/medium duty diesel engine to this day that does not have an Achilles heel of some kind. Literally all of them have critical failure point. With that said, I think the 70s/80s olds/GM diesel stuff gets a bad rap for really not being unlike any other diesel. I’ve had many 6.2/6.5s and they’ve never let me down. Not one has left me on the side of the road. The 6.2/6.5 is the most cost effective and practical light duty diesel ever produced in my opinion. The 6.9/7.3 internationals were good but the cost of ownership was high. Same as the 7.3. Same with the 5.9. A square body or obs Chevy c/k with a 6.2/6.5 could be one of the best vehicles ever built overall.
the worst or best doesn't matter, the important thing is coverage and exposure of the Oldsmobile diesel engines so young people can learn about them. My favorite engine of all times is the Olds 5.7 diesel bx I love the clatter and smoke. I am a collector with 4 of these cars. Great video Adam!! Freddy in Arkansas.
GM under rated the L78 402 solid lifter high compression at 375hp and Hot Rod tested one and it made 425hp with cast exhaust manifolds and 445hp with headers.
Adam, I would suggest doing click bait for April fools day. It makes more sense. Could you sometime interview some of the powertrain people? It would be interesting to hear what caused the mistakes like the Oldsmobile diesels, the Northstar V8, the ht4100, the quad 4, or transmission issues from older units like the 4T65E and why decisions like using the 4T65HD in the W body LS4 instead of the stronger 4T80 which others have swapped in as a replacement.
Props to this guy not using AI or text to speech software because there's soooooooo many that have started using it. A lot use software that kinda clones your voice but still butchers words. If you are using one it's a damn good one 🤣 but Im 99.9999% sure it's actually you behind the mic because you actually laugh at the right times and can hear you take a breath here and there.....🤔🧐 Damn I notice everything lmao but I can't turn it off but thx again because I can't stand the dull boring robot sounding AI software BS 🤣👊
No doubt the photo and video title was enough to get the LS faithful to start a march towards your castle with pitchforks and burning torches and effigies! Good video, Mr. Adam.
One of these engines was left in the corner of the garage of a house I bought around 1992. A neighbor told me the previous owner swapped in a Buick 3.8 gas engine.
My dad owned a Chevrolet dealership. I remember when GM came out with the first diesel pickups. Man, those things were dogs. You could floor it and in about 2 minutes, you'd be up to about 50mph.
Our neighbor briefly had one of the first Chevy (shortbed) pickups with the diesel engine.. I recall he went thru two engines and a shattered crankshaft before dumping it in disgust…it wasn’t long..he never bought a GM product again. Up until then he was a GM lifer. GM did so much damage to their reputation…how cynical can you be to release such flawed product??
That underhood shot starting at 4:40 to 7:15 has an interesting pair of knife switches by each battery. I wonder what problem the owner was trying to solve with those ...
I would say the vega engine should be the worst of all, my dad brand new car engine died in a year...and he was a GM mechanic...it was something to do with the aluminium casting...
I hope you had a good Christmas Adam. I couldn't remember the original ls2. So when I first seen the video I was like what? Anyways, you are so knowledgeable. Thanks my friend.
V6 gas engines were lousy in the 70s and 80s too. We had several in the family that were all oil burners from both GM and Ford. It wasn't really until the 90s when they got the bugs out of the V6s
I don't think anyone but hard core GM diesel enthusiasts ever even knew of the LS2 code...... and of that there might be 5 people on planet earth lol Thankfully when you say "LS2" to anyone it always means the legendary V8s.
Thank you Adam. Just think if GM had got the diesels right initially where would GM be be in terms of engines. Volkswagen years later had their diesel scandal. No one is letting them forget it either. The cost cutting and short cuts keep costing GM. When you were discussing this engine for a minute I thought you were discussing the Northstar V8.
Maybe do an episode about vehicle manufacturing Union ? The GM had very unlucky and bad malaise era decade. They just gave car market away to Japanese.
GM has a history letting the customer do the product development for them. The Vega engine, olds diesel, 2.ish liter cam chain tensioner, cylinder deactivation trash, LS oil pumps.
I normally disagree with your badmouthing serviceable old equipment - but this time I agree. We used to joke that JC couldn't make one of these toids stay together.
I am running a stock engine, no mods, no tunes, no major work, in my 05 Corvette, owned since 2017 got with 112k, now at 135k. Reliable as hell and performs great. I know thats not the engine in question, I am just saying.
Here's a question for you Adam: Why does GM use the letter "L" at the beginning of all their engine names? Porsche used a scheme that kind of made sense: The 928 had a V8 engine called an M28. The 944 had an engine called an M44. The '98-'08 911 was sold as a 911 but referred to internally as a 996, and the water cooled engine they developed for these was called an M96. M seems to mean "motor" in German, and "motor" is engine in that language My wife speaks it, but she knows nothing about technical terms, being from Belgium. Volkswagen uses "EA" for their engines, such as the EA827 1.5-2.0 liter engine that was in every Rabbit, Jetta, Scirocco, and Passat that has been built since 1974; Toyota on the other hand uses numbers first then family then details on their engines such as the 2JZ. I've posed this question on various VW and Porsche boards such as VWVortex, Rennlist, and Planet 9 and nobody has an answer.... Why does GM use the letter L for their engines designations?
No, that was not the "Worst LS engine, the worst is the one that cost Mary Barra and GM 102.6 million... And that's the RPO (LC9) 5.3L found in 2008-2013 chevy/GMC trucks this engine suffered severe carbon coking, excessive oil consumption, failed AFM lifters. 👍
Ugh. I remember seeing Olds Diesels in the dealer service department with puddles of oil underneath them after they pushed the crankshaft out of the oil pan.
We see what you did! That 4.3 black smoker was a joke. Why Oldsmobile, why? Had to have been a CAFE driven decision, just like the diesel Chevette. Ahh.yes, the malaise era at its worst.
I drove Olds diesels for years and loved the things. I am not nor was I ever a race car driver so i found the acceleration adequate if a bit uninspiring. 30MPG highway, starts in all weather (although i did plug 'em in when it got below zero) and runs relatively trouble free. My luck with those was spotty not because of issues inherent to the design but rather due to the sins of previous owners. A well maintained 350DX would offer dependable service in excess of 300K miles. I would never nominate a GM Olds diesel, V8 or V6, as the best engine ever but also certainly not worst. My personal pick for the worst GM engine, after maybe the Vega, would be the small bock Chevy V8. Thirsty and short lived, I don't see much if anything about them to like. Yes its design was way ahead of the times in 1955, and by 1955 standards it was probably an okay engine. But they did little if anything to improve it as the world moved on around it. Other GM divisions, as well as Ford and even Chrysler, developed and marketed absolutely first rate engines while Chevy plodded along with that pig.
The G8 GT never came with a LS2. It had a L76 which was basically identical to a LS3 except with a smaller cam and slightly lower compression. Rec port heads vs the cathedral heads found in the LS2.
I don't think the crankshaft was forged. I remember doing an overhaul with my father and the crankshaft came out broken in two! We were surprised as this was a running engine. It just had a lot of blow-by.
GM has had its share of garbage engines. The early Cadillac 4100, the diesel 350, the junk 2.3 in the Vega/Astre, and now the turbo 2.0 Ecotech, but maybe the nightmare GM engine to own now is the 3.6 V-6. It's just a matter of time before that engine has major timing chain and tensioner problems that can be so bad that the entire engine has to be replaced.
do you like the Vortec 5.7? My dad had a '98 Tahoe that I learned to drive with. I never hear anyone mention the 5.7 very much. Nothing special but did the job.
What was that engine in the 80s that had that coil pack that was built into the cover of the engine? I think it was in pontiacs. Man that thing was pretty bad.
I never really had any experience with GM’s diesel engines from that era especially in Canada…if I had to pick the worst engine from GM, it would be one of those 3.4 V6 from Lumina or those Quad 4 engines from GrandAM…at least in Canada they were disastrous.
i dont know if the 3.4 DOHC was a terrible engine, it performed well..... but it was a bit of a maintenance nightmare. it was replaced by the L67 series II 3800 which was probably one the best V6's GM ever made. i still have one, a 2003 bonneville SSEi which is off the road for the winter right now.
I'm still curious why they say GM engines when, yes they're under the GM umbrella but each division made their own engines like LS is from Chevrolet, Buick made the 3.8, and Pontiac made the iron duke. So just say Pontiac engine or Buick instead of GM lol
What about the M-B, Peugeot and Isuzu diesels of the seventies and eighties? I was in college from the early seventies to the mid eighties and never heard anything but good things about them. Did they have water separators? I had an employee with an Isuzu diesel pickup who drove it over 500K miles w/o any engine issues.
1973, LS2 was a SD455. I see now, someone else noticed too
The Oldsmobile Diesels will always and forever be the WORST GM engines ever made and sour America's interest in diesel engines in cars.
A diesel nerd can fix the reliability issues with Olds diesel - they get great fuel economy, but without a turbo they accelerate slowly. There are still a few running forever.
I also heard of a aluminum Vega motor that is running great with 200,000 miles, but every time he used the Vega he checked the coolant level and meticulously changed the oil
I beg to differ, respectfully. The Vega motor made a better boat anchor than a car engine.
@@timothykeith1367The Vega engine was fine once it was cast iron sleeved and the Oldsmobile diesel wakes up a bunch with a Paxton supercharger and a water trap!
Agree. The Olds diesel was like the Chernobyl of car engines. Engineers, mechanics, and general car nerds could explain the upside of diesel engines. But people only thought about the disaster. Unfortunately after the 2000's Americans were becoming more open to the idea of small diesels as a high mileage alternative to hybrids. Then Volkswagen happened and it was back to square one.
@@timothykeith1367My uncle had one and he knew how to get it running well. Of course, he grew up driving a tractor!
Adam doing a clickbait titled video?? I never thought I'd see the day 😹😹😹 great stuff as always!!
As a former GM service tech I would say the HT-4100 is far and away the worst engine GM made!
I think it was the Chevy Vega engine. The HT 4100 is probably second or third.
@@dmandman9 The thing about the HT4100 is that it was in an expensive, high end car. The Vega was a cheap car to begin with. Not excusing problems with it but it was a rather tin lizzy even if the engine didn't have so many issues. The cars the HT4100 were in were what would be at about $60,000 cars today, fully loaded luxury cars, and people who bought them had much higher expectations of performance and reliability, They also really didn't care about fuel economy and probably would have gladly paid a premium for better, stronger V8s if GM would have been willing to simply pass on the CAFE penalties to them in the sticker price keeping the fuel injected 368 without cylinder deactivation or other nonsense..
@joe6096 I agree with the fact that the expectations of a luxury car or higher then those of a entry-level car. But I was talking in absolute terms not accounting for the type of car. To be honest, I don't know the actual failure rate of each engine as far as percentage engines that failed. But the Vega was more widely known at the time because of the sheer numbers sold and the sheer numbers that failed. During the 70s, Vegas were everywhere. Show more people were affected and almost every shop encountered several Vegas smoking like mosquito trucks because of the scored cylinders. If a head gasket was blown, the lower engine was also toast. The ht4100 may I may not have had as many failures percentage wise, but it was not quite as widely known at the time because I think they failed at somewhat higher mileage than the Vegas although I could be mistaken about that. But since there were less Cadillacs than Vega sold, you are less likely to encounter one. And you may not have known how bad they were unless you owned one because you didn't just routinely see them smoking on the highway. But even people who never drove or repaired a Vega likely saw one smoking beside them in traffic or knew someone who had one if for no other reason than the fact that a lot more Vegas was sold in Cadillacs. Thankfully the ht4100 was restricted to Cadillacs and not installed in the Caprice or Monte Carlo . That would have been epic 😂
The 3.3L V-6 in my '91 Olds Ciera felt peppier and was less terrifying in passing on two lanes than the HT4100 in Mom's '87 Deville.
MAN, you aint kiddin'. Even the stinkin water pump was a drag. Oil smudge all over the place, those funky I rings in the thermostat housing, pulling the PS pump pulley, the crank pulley. What a messy job. Under powered dog. Worse than the V8-6-4 Caddy.
The LS2 was also the designation for the famous Pontiac SD-455 of 73-74.
Thought that was LS5
Nope. LS5 was the Chevy 454 that was a lower HP version of the legendary LS6. The 1970 Corvette 454 was the LS5.
@@pdennis931970 Monte Carlo SS was also LS5
The LS5 was more than a lower HP version of the LS6. It had a 2 bolt main block, small port heads, a cast crankshaft, a cast iron intake manifold with a Quadrajet instead of a Holley 780, a hydraulic cam…
The LS5 was also the 1971 & 1972 Pontiac 455 HO Trans Am engine.
You thumbnail teaser! Was ready to tell you why you were wrong. 🤣
Yes! I suspected a trick, and was happy to click to learn more :)
I jumped in the comments before he had his second word out to do the same thing! TRICKY!!
I'd argue the turbo Ecotecs are pretty darn close.
The 2.4 ecotec too
These engines suck, just terrible. The high feature v6 is equally terrible as well
@@CurtisL8.3066 Actually it's not, change the oil appropriately and keep the PCV clean and those engines last a long time. They also have a really stout bottom end, so you can apply forced induction without breaking them.
I put 188k on a 2008 Chevrolet HHR with the 2.2 Ecotec in 4 years.
I traded in that HHR on a 2012 Chevrolet Sonic hatchback with the 1.8 Ecotec & a 5 speed manual. Just turned 187k miles yesterday ( retired, so I don't drive as much ).
As stated above, keep the oil changed every six months or 5,000 miles. I also use No-Ethanol gas & that seems too help as well.
I had a 1978 Beauville G20 sportvan with the emission delete option, which was a 4 bolt main 350 with a 4-barrel Q-jet, but no catalyst or EGR. The engine code was LS9😅
As mentioned before, I had a neighbor who bought a used Cutlass Ciera diesel and liked it so much that he bought two more of them. I'm pretty sure all of them were 1984-85, and it seems by then, the demons had been exorcised. These were 10 year old cars when he acquired them, well used, yet I remember them spending their time with the hoods closed and driving. I caught a ride in one once, and it wasn't bad at all. There were five of us in the car, and it percolated along without straining... I'm pretty sure trying to execute a pass on a two lane road would've revealed that we were dealing with 90 horsepower, though. I remember him claiming 40-ish miles per gallon. Though I'm not too keen on naturally aspirated diesels, I think you could do a lot worse than these. As GM has done so many times in the past, the product they were producing when it was discontinued, was the product it should've been at release.
You amaze me at the obscure, most bizarre things you find to entertain us with content!!~~
Chevy Vega engine is the worst one.
Adam is being cleverly tricky with the title.
This kinda story always has me wondering...what if I set up a 350 Olds diesel with ARP head studs, a fuel/water separator, the quick start glow plugs, two small turbochargers, and an intercooler? Could it potentially be a reliable, comfortably powerful, easy-starting, relatively fuel efficient engine?
Yes.
Even with the thumbnail I knew there was no way Adam was talking about THAT LS2 😂
Im used to clickbait. Your missing the true Scotty K clickbait basics. Well done, Adam W.
Yes. I need a video titled, “I’m done and leaving!”
Ewwww Scotty kilmer 🤮🤢🤮
@@RareClassicCars Don't forget to drink a few bottles of cough syrup before you get ranting if you want to be true to the original.
@@RareClassicCars 2 thumbs up!!~ Made me lol
@@RareClassicCarsunfortunately, he never does.
My parents got a brand new 1979 Oldsmobile cutlass salon with the V8 diesel, my father loved that car until it started blowing out transmissions . I recall 3 transmissions in the first two years,something about to much torque from the diesel. I don’t remember any issues with head gaskets. Anyway the car only lasted about 6 years,we lived way upstate New York and the road salt destroyed the body. Keep up the good work……
Quite the thumbnail 😅
THM 200. It couldn't handle the power of the 305 in my 1979 Malibu, either.
Lol a diesel Cutlass salon would be a gutless buttless Cutlass 🤣🤣🤣
Lol, if you had a '70's GM diesel, the least of your problems was the transmission!
@@pdennis93 But it wasn't rustless
My nomination is the gasoline Vega 2.3 liter L-11. GM could afford to make an antidote to Diesel engines, which were what all Oldsmobile based 5.7, 4.3 V8 and 4.3 V6 diesels were. But they couldn't afford to make a whole new line of Vega and Astre engines fail in the way the L-11 did. That was a tradgedy.
The G8 6.0L is actually a LS2 block with LS3 heads making it a L76 with DOD. So LS2 halfway! Regardless, the motor can easily pump out good power numbers and take an LSA blower easily to make mid 600 WHP, speaking from personal experience!
Thats what's in my g8 , makes decent power stock. Can't wait to cam it when I dod delete it
The Chevette Diesel was offered in 1986. I've driven one!
zero to sixty in 30 seconds but great MPG
Honorable mention to the L26 and the Northstar!
Gotta love a engine that comes with stop leak in the cooling system from the factory and required it to be added when changing the antifreeze, I'll never forget reading the tag on the radiator hold down that said the antifreeze needed a additive added that you had to get from GM and they included a part number I called the dealership and gave them the part number listed and asked what this special additive was and the parts guy said stop leak, that when you know you got a good motor
An example of the importance of a water separator was for diesel engines of that era, my 1982 Isuzu P'up diesel had one, where a couple of times a month I would pump out a few tablespoons of water, along with some bits of algae, too.
I’ve owned my unmodified 240D since 1994 and never even considered water in diesel fuel. Mercedes designed the fuel filter to trap water.
Ewww ! 🤢🤮 gross, like totally. Like, gag me with me with a spoon...........would have been the appropriate response at the time, especially if you had girls in the house that watched Square Pegs on tv
Didn’t the diesel V6 have one? I heard it’s much better than the 350ci V8 that was a laughing stock.
Back in high school I was a freshman in 96. A senior who came from a gearhead family had one of those frt wheel drive 4.3 diesels. Well he and his father went and got a old turbo from a late 70s buick, then the air cleaner/intake from a 301 turbo firebird. They somehow cobbled it together on the 4.3 diesel. It wasn't perfect by any means. You could hear leaks everywhere when the hood was popped. The thing was dialed in super rich. To compensate for the extra air from the turbo. The summit racing gauge said it got about 10lbs of boost. They ended up cutting holes in the hood to vent the heat from the turbski. From rough estimate he figured around 150hp and about 200ftlbs. I got to go for a ride twice and it was a blast. It was loud, smoky, dirty, and obnoxious. Seemed kinda quick for what it was. Keep in mind during this time everybody and there mom was driving a beat up g car with a 305/307 that only put out 140/150hp brand new. I was just getting into cars and engines so looking back I wish I would've paid attention to how they ran the plumbing. Oh well.
Belive it or not it was the transmission that popped first. Those old gm transmissions were dialed in to the ftlb to take exactly as much torque as the top engine option. Being as that was probably the 2.8v6 with like 130ft lbs it's surprising he got 6mths out of this setup.
GM has some bad habits. They like to reuse old RPO codes. Like the LS2 as you stated. Also the LT1 that some know from the 1994-1996 Corvette, F-Body and B-Body cars. But the original LT1 came out in the 60s I believe. Then the LT4 was used recently and was also used in 1997 for a completely different engine.
Their other bad habit is tweaking a vehicle over a few years, getting it right, then killing it off immediately.
I love GM. But they've really done some stupid things through the years
the older LT-1 was the LT-1, the LT1 was introduced in 1993 for the Fbody had no hypen, and it was also in the caprice/roadmaster with iron heads. for a number of years it was a cop car favorite, because when they are running properly they were a torque monster for that era.
The olds diesel ordering code LT6 available in the 1982- 84 RWD Cutlass, is now used in the Corvette.
GM-Holden did the same thing, but someone clever was behind one of them. LF1 was first used on the 1986 VL Commodore to denote the 3.0L naturally aspirated 6 cylinder - the base spec motor, sourced from Nissan (RB30E).
When they released the SIDI versions of the HFV6, they used a 3.0L version as the base motor in the VE2 Commodore, and it wore the same LF1 code. Same capacity, same cylinder count, but one was inline and the other a V.
The original LT-1 was introduced for 1970. It was a very high performance 350ci engine producing 370hp in the Corvette and 360hp in the Camaro Z28. It continued though to 1972 in lower horsepower form
@@user-pgchargerse71 370 hp, it must have been quite the screamer
Adam, The lesson in this public service message has come through loud and clear, I will never buy a GM Diesel!! 😉
My Dad had an Olds 98 with the diesel. Driving that car made me want to be a hobo instead. What a heap of rolling trash.
The newer current diesels are awesome. The 6.6 duramax had an excellent reputation and my current gmc has a 3.0L 6cyl diesel and it is fantastic...smooth, quiet, torque, and amazing mpg.
I will never guy a GM anything~
I'll go one step further and state the I WILL NEVER BUY A GOVERNMENT MOTORS product.
@@cementer7665 For you I recommend nothing other than a Tesla.
I was working for a Buick dealer when the 5.7 Diesel came out. It was optional in the LeSabres & Electras. I don't think I ever seen one in a Riviera. It was a total disaster from the start. Injector pumps were a big problem a long with head gaskets. Also we had a few with broken crankshafts. One I remember the crank broke in the center main and the front 4 cylinders actually run. We had a whole row of customers diesel cars back in service waiting to be worked on almost daily and a lot of unhappy customers. The sad thing is by the end of the run on the 5.7 Diesel GM had worked out most of the bugs and was a much better engine but by then nobody was buying them. The 4.3 Diesel was in the Regals and Centurys And it was just as bad as the 5.7 diesel. So typical with GM and their insane rush to put out engines before they were ready them improve them afterwards and by then no body would buy them so the excuse was always to discontinue due to lack of demand instead of poor engineering
I wanted an LS2 for a swap, into my 1995 volvo 940 wagon. Not knowing about all the LS2 variations, I got one from a CTS-V, it was a little cheaper.
For a volvo swap, I got very lucky. The exhaust manifolds, and placement of the alternator, power steering pump, and a/c compressor happened to be ideal. Any of those things being different would have complicated matters. The manual trans is a slightly odd version of what is basically a tremec t-56. The partially external shifter linkage was a minor nuisance, fixed by making it fully internal with some GTO and f-body trans parts. And ditching the dual mass flywheel.
It's really fun.
Just an LS2 tip...you got me with the video title!
Love your videos. Strangely interesting facts about cars I didn't like that much when they were common. Sort of miss them, now.
That would have been a very sweet swap. I was on the hunt for a 740 wagon and could not find one that wasn't either thrashed or too expensive, or worse both! I finally bought a 95 960 and was pleased with my choice. A V8 would have made it even better.
Those 6.2 litre Diesels from the late 70s-early 80s were garbage too. Thet had glow plug isdues and would back fire and blow the starter off, breaking the engine block in the process ruining the engine requiring replacement. I went with a 3rd gen 7.4 litre gas engine(454 cubic inch.)to replace the Diesel.
Merry Christmas Adam 🎅
LS1 was the motor that made a new generation of motorheads fall in love chevy/gm again. Anyone who was young in the 90s remembers how much the import tuner crowd had taken over the enthusiast market. The LS1 single handedly began to turn the tide. The 1st FF movie that came out in 2001 came out after the import tuner craze peaked. Hollywood was late to the party but I will give them credit. The 06 Dodge Charger would not have seen production if it wasnt for that movie.
Not sure.. The import craze started to die because those cars never really performed. The fake performance trend died like any fake trend. I would argue that the 5.0L Fox Mustangs turned things around starting in about 1983 or so. The '82-92 F-bodies were poor quality dog cars that looked great but performed poorly.
The C4 Corvettes never generated any excitement. The C5 Corvette released in 1997 looked pretty plain until you took one for a drive. The new LS1 350 and 6 speed T56 trans took over.
The LS1 was released in the F-bodies the next year, 1998, but those cars were terrible in every aspect.
The LS engines really took off when they were release in the 2000 GM trucks, then those engines were available everywhere for cheap, but that was later in the 2000's...
The original LS1 was the 1970 Pontiac Trans Am RAIV 400 Engine.
@@joestang5550 they did perform in the turns but required $$ to get the straight line performance of an ls1 f body. In the curves though there was no contest. The hondas dsm cars and vwz of the 80s and 90s were a blast to drive. I had a 88 Prelude Si 4ws 5 speed and it was the most fun car Ive ever driven to this day. Low weight made them great which is why zero new cars are fun to drive now. Theyre all too heavy.
@@Henry_Jones If you took a current Civic Type R or a GR Corolla for a test drive, you would forget all about the '80's and '90's Japanese cars. Except the '90's Supra. :)
90hp holy Moses that's a motorcycle engine
hehe malaise era. These were the numbers and only a few engines got 200hp and more a that time.
I’ve been a diesel tech for 20 years. When I was in my early 20s I wanted to get a diesel pickup so I bought a 82 c10 with a 6.2. That sent me down the rabbit hole of all the lesser known old/GM diesel stuff. Knew an old timer that owned an injection pump shop. He made good money salvaging olds 5.7 diesels and sending them out to Nebraska to be used as irrigation pump engines. Said they’d run forever in that application. And honestly, you can’t name a light/medium duty diesel engine to this day that does not have an Achilles heel of some kind. Literally all of them have critical failure point. With that said, I think the 70s/80s olds/GM diesel stuff gets a bad rap for really not being unlike any other diesel. I’ve had many 6.2/6.5s and they’ve never let me down. Not one has left me on the side of the road. The 6.2/6.5 is the most cost effective and practical light duty diesel ever produced in my opinion. The 6.9/7.3 internationals were good but the cost of ownership was high. Same as the 7.3. Same with the 5.9. A square body or obs Chevy c/k with a 6.2/6.5 could be one of the best vehicles ever built overall.
the worst or best doesn't matter, the important thing is coverage and exposure of the Oldsmobile diesel engines so young people can learn about them. My favorite engine of all times is the Olds 5.7 diesel bx I love the clatter and smoke. I am a collector with 4 of these cars. Great video Adam!! Freddy in Arkansas.
GM loves recycling the LS engine designations. I have a LS3, not the modern 6.2L performance engine, but a '72 402 big block.
GM under rated the L78 402 solid lifter high compression at 375hp and Hot Rod tested one and it made 425hp with cast exhaust manifolds and 445hp with headers.
The LS2 that is in my 2007 Corvette 3LT is one of the most bulletproof excellent engines I have ever owned.
Adam, I would suggest doing click bait for April fools day. It makes more sense.
Could you sometime interview some of the powertrain people? It would be interesting to hear what caused the mistakes like the Oldsmobile diesels, the Northstar V8, the ht4100, the quad 4, or transmission issues from older units like the 4T65E and why decisions like using the 4T65HD in the W body LS4 instead of the stronger 4T80 which others have swapped in as a replacement.
Props to this guy not using AI or text to speech software because there's soooooooo many that have started using it. A lot use software that kinda clones your voice but still butchers words. If you are using one it's a damn good one 🤣 but Im 99.9999% sure it's actually you behind the mic because you actually laugh at the right times and can hear you take a breath here and there.....🤔🧐 Damn I notice everything lmao but I can't turn it off but thx again because I can't stand the dull boring robot sounding AI software BS 🤣👊
The Olds 350 Diesel makes a Great Gasoline Racing Engine. Install an Oldsmobile 425 Crankshaft. Good for 1000+ Hp Turbo Boost
No doubt the photo and video title was enough to get the LS faithful to start a march towards your castle with pitchforks and burning torches and effigies! Good video, Mr. Adam.
One of these engines was left in the corner of the garage of a house I bought around 1992. A neighbor told me the previous owner swapped in a Buick 3.8 gas engine.
My dad owned a Chevrolet dealership. I remember when GM came out with the first diesel pickups. Man, those things were dogs. You could floor it and in about 2 minutes, you'd be up to about 50mph.
Our neighbor briefly had one of the first Chevy (shortbed) pickups with the diesel engine.. I recall he went thru two engines and a shattered crankshaft before dumping it in disgust…it wasn’t long..he never bought a GM product again. Up until then he was a GM lifer. GM did so much damage to their reputation…how cynical can you be to release such flawed product??
That underhood shot starting at 4:40 to 7:15 has an interesting pair of knife switches by each battery. I wonder what problem the owner was trying to solve with those ...
Hahaha, you got me! I’d really enjoy a video on GM Displacement on demand/ AFM and how it works.
Did you explain what made the C body 4.3 different from the A body 4.3?
Ohhh. A true Frankenstein’s monster of a contraption.
Sorry Adam, I respectfully disagree. ALL GM passenger car diesels were junk and should be designated worst ever.
What about this junk of vega/astre 140cu/in aluminium engine? It was well wore out before 20k miles…
'73-'74 Pontiac 455 Super Duty was LS2
The 5.7 liter Oldsmobile (GM) Diesel engine in a Chevrolet/GMC pickup WAS truely a gutless wonder.
An LS will always be a 454 to me.
I had a boat with an LS6 454. What a beast!
I would say the vega engine should be the worst of all, my dad brand new car engine died in a year...and he was a GM mechanic...it was something to do with the aluminium casting...
I hope you had a good Christmas Adam. I couldn't remember the original ls2. So when I first seen the video I was like what? Anyways, you are so knowledgeable. Thanks my friend.
I would imagine GM down sized the oil filters on those engines too.
Mopar guy here but have to be honest the LS2 onward engine series are excellent
Great tease in the beginning Adam!😂😂
We need a video on the Lm7 as one of the best engines ever
Goated engine
Clickbait thumbnail. Shame on you.
Look at that crazy uninsulated disconnect in the lower right corner at 7:13
Will you ever make a video on GM's boxer engine from 1960-69?
Great click bait! Just kidding, I am trying to sell my LS2 powered C-6 Corvette!
Nonetheless, great content!
V6 gas engines were lousy in the 70s and 80s too. We had several in the family that were all oil burners from both GM and Ford. It wasn't really until the 90s when they got the bugs out of the V6s
Wait, I thought this was the best one? Y'all need to make your minds up!
I don't think anyone but hard core GM diesel enthusiasts ever even knew of the LS2 code...... and of that there might be 5 people on planet earth lol
Thankfully when you say "LS2" to anyone it always means the legendary V8s.
Thank you Adam. Just think if GM had got the diesels right initially where would GM be be in terms of engines. Volkswagen years later had their diesel scandal. No one is letting them forget it either. The cost cutting and short cuts keep costing GM. When you were discussing this engine for a minute I thought you were discussing the Northstar V8.
Maybe do an episode about vehicle manufacturing Union ?
The GM had very unlucky and bad malaise era decade. They just gave car market away to Japanese.
GM has a history letting the customer do the product development for them.
The Vega engine, olds diesel, 2.ish liter cam chain tensioner, cylinder deactivation trash, LS oil pumps.
HT 4100
I normally disagree with your badmouthing serviceable old equipment - but this time I agree. We used to joke that JC couldn't make one of these toids stay together.
I am running a stock engine, no mods, no tunes, no major work, in my 05 Corvette, owned since 2017 got with 112k, now at 135k. Reliable as hell and performs great. I know thats not the engine in question, I am just saying.
Such a dumb route. GM diesels would be garbage without Izuzu. Edit: ISuzu.
Great content
Here's a question for you Adam: Why does GM use the letter "L" at the beginning of all their engine names?
Porsche used a scheme that kind of made sense: The 928 had a V8 engine called an M28. The 944 had an engine called an M44. The '98-'08 911 was sold as a 911 but referred to internally as a 996, and the water cooled engine they developed for these was called an M96. M seems to mean "motor" in German, and "motor" is engine in that language My wife speaks it, but she knows nothing about technical terms, being from Belgium. Volkswagen uses "EA" for their engines, such as the EA827 1.5-2.0 liter engine that was in every Rabbit, Jetta, Scirocco, and Passat that has been built since 1974; Toyota on the other hand uses numbers first then family then details on their engines such as the 2JZ. I've posed this question on various VW and Porsche boards such as VWVortex, Rennlist, and Planet 9 and nobody has an answer....
Why does GM use the letter L for their engines designations?
Worst GM engine? That is a tough choice as over the years they have had some real losers. My vote would be the engine that went into the Chevy Vega.
Woodstock, Vega and the Oldsmobile diesel produce more internet storytelling than sasquatch sightings on Chicago.
No, that was not the "Worst LS engine, the worst is the one that cost Mary Barra and GM 102.6 million... And that's the RPO (LC9) 5.3L found in 2008-2013 chevy/GMC trucks
this engine suffered severe carbon coking, excessive oil consumption, failed AFM lifters. 👍
Ugh. I remember seeing Olds Diesels in the dealer service department with puddles of oil underneath them after they pushed the crankshaft out of the oil pan.
GM could of swept the market if they just put a few bucks in the diesel program and in the vehicles
Oldsmobile’s 4.0 Northstar was horrific as well
Really? I thought they'd sorted the Northstar by the time they shrank it for the Aurora.
I think the common agreement was it was fixed around 05-06 with stronger head bolts.
Don't forget the original LS9 was a truck 350 SBC.
The LS all the mechanics HATE is the LS4, the only Chevy V8 to go down the road sideways~
April fools came early? lol nice one Adam, you nearly fooled me 😂
LS7 has had it's fair share of issues as well. 🙈
We see what you did! That 4.3 black smoker was a joke. Why Oldsmobile, why? Had to have been a CAFE driven decision, just like the diesel Chevette. Ahh.yes, the malaise era at its worst.
I drove Olds diesels for years and loved the things. I am not nor was I ever a race car driver so i found the acceleration adequate if a bit uninspiring. 30MPG highway, starts in all weather (although i did plug 'em in when it got below zero) and runs relatively trouble free. My luck with those was spotty not because of issues inherent to the design but rather due to the sins of previous owners. A well maintained 350DX would offer dependable service in excess of 300K miles. I would never nominate a GM Olds diesel, V8 or V6, as the best engine ever but also certainly not worst. My personal pick for the worst GM engine, after maybe the Vega, would be the small bock Chevy V8. Thirsty and short lived, I don't see much if anything about them to like. Yes its design was way ahead of the times in 1955, and by 1955 standards it was probably an okay engine. But they did little if anything to improve it as the world moved on around it. Other GM divisions, as well as Ford and even Chrysler, developed and marketed absolutely first rate engines while Chevy plodded along with that pig.
The early diesels probably were the worst but the carbureted 3.0L in my 1983 Olds was a huge piece of crap too.
The G8 GT never came with a LS2. It had a L76 which was basically identical to a LS3 except with a smaller cam and slightly lower compression. Rec port heads vs the cathedral heads found in the LS2.
Yeah, the new LS is a great platform, I've got my Volvo engine internals swapped over to LS.
Using the name LS2 after the failure of the diesel LS2 would be like building a new super cruise ship and calling it Titanic.
I don't think the crankshaft was forged. I remember doing an overhaul with my father and the crankshaft came out broken in two! We were surprised as this was a running engine. It just had a lot of blow-by.
Just the odor of the diesel sold in the 1980s was probably enough to make these owners regret their decision long before mechanical issues showed up.
It was way better than today's diesel unless of course you were running old French fry oil and then you smelled like a rolling McDonalds franchise!
That Cadillac V8-6-4 was fairly disappointing.
GM has had its share of garbage engines. The early Cadillac 4100, the diesel 350, the junk 2.3 in the Vega/Astre, and now the turbo 2.0 Ecotech, but maybe the nightmare GM engine to own now is the 3.6 V-6. It's just a matter of time before that engine has major timing chain and tensioner problems that can be so bad that the entire engine has to be replaced.
do you like the Vortec 5.7? My dad had a '98 Tahoe that I learned to drive with. I never hear anyone mention the 5.7 very much. Nothing special but did the job.
Can you convert a 350 Diesel into a 350 gasoline engine?
3:14 Finally a water separator for 1985! Just like GM, get a design perfected and cancel it the next year.
Boy I'm not sure. Those early vega engines were pretty bad. Tough call between the two
What was that engine in the 80s that had that coil pack that was built into the cover of the engine? I think it was in pontiacs. Man that thing was pretty bad.
I never really had any experience with GM’s diesel engines from that era especially in Canada…if I had to pick the worst engine from GM, it would be one of those 3.4 V6 from Lumina or those Quad 4 engines from GrandAM…at least in Canada they were disastrous.
i dont know if the 3.4 DOHC was a terrible engine, it performed well..... but it was a bit of a maintenance nightmare. it was replaced by the L67 series II 3800 which was probably one the best V6's GM ever made. i still have one, a 2003 bonneville SSEi which is off the road for the winter right now.
I'm still curious why they say GM engines when, yes they're under the GM umbrella but each division made their own engines like LS is from Chevrolet, Buick made the 3.8, and Pontiac made the iron duke. So just say Pontiac engine or Buick instead of GM lol
By whatever name that was a truly poor engine and could rate worse GM engine... I'm sure there is one guy out there who loves them...
What about the M-B, Peugeot and Isuzu diesels of the seventies and eighties? I was in college from the early seventies to the mid eighties and never heard anything but good things about them. Did they have water separators? I had an employee with an Isuzu diesel pickup who drove it over 500K miles w/o any engine issues.
15 years of college is disturbing.
You're wrong about crankcase capacity. We had 78 Delta 88 diesel bought new. It took 7 quarts of oil.
Every other time you filled up???😂😂😂