Used VS New Oil in your Car | Fifth Gear Classic
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- Опубликовано: 2 авг 2024
- In this classic Fifth Gear clip, first broadcast in 2014, Vicki shows why it's so important to change the oil in your car.
#FifthGear #Oil
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So Gran Turismo 1 wasn't lying about getting more power from oil changes. Interesting.
King Hip-O GT4&5 still did this too
No, but perhaps they lied about how MUCH power you would get from an oil change.
They were desperately trying to get you into the habit
The oil change guy was amazing he had an changing system inside of him he went under the car swallowed The oil and spat it out as new oil
If only doing a oil change before you ever drive the car gave you extra bhp without mods lol
I always felt, top gear was fun to watch, taught me about the cars on the road - most of which I wouldn't ever see or ever be able to own. Fifth gear, was more interesting and taught me how my car works and how cars in general perform. Both great programmes!
I am tempted to believe that what made the difference was : 1. Different atmospheric conditions, lower humidity and different temperature/pressure; 2. Clean air filter.....(maybe even different fuel). This test should have been done with clean air filter with both oils in a controlled dyno chamber, same temp and humidity and same fuel.
Not to mention it is a manual... Good luck geting every shift off with the same time. A DSG would have much more even shift times, making it a much better comparison.
Exactly.. half a second difference 😂 and put down to a oil change, over everything else (including weather conditions) is a very big conclusion to make.
And I bet she had shit and pissed in between so lower weight yeah?? Maybe wiped a few grams of mud off of her shoes?
Stop being a pathetic exceptical, new oil means new fresh aditives= Less friction in the internals= more power. Simply as that. Read it again if you did not understand something.
@@leafysfishingoil changes only take at most like 30 minutes so if they did the test switched the oil then did it again the weather might not have changed very much...
But yeah with a manual it could all have been complete bollocks. When I first change my oil on my manual car (or swap the air filter, or swap the spark plugs, etc) I'll get marginally better fuel economy for like 1 tank of gas then it's back to normal...
Lower viscosity in and of itself does not mean less lubrication. Modern oils are often 0W30 (very low viscosity) yet they provide *more* lubrication than the older 30W50 types which have a far greater viscosity. Lubricity and viscosity do not go hand in hand. I thought an informed automotive "expert" would have known that :-/
I believe what you're saying is not the case here. The old engine oil you mentioned is mineral oil and fundamentally different from a modern synthetic oil.
They're comparing a new and used oil with the same molecular properties, so there's a correlation between loss of viscosity and lubrication.
@@John2751 Not correct. I've been using 15W50 synthetic motor oil for a couple of decades now. Viscosity does not equal lubricity. Film-strength is a far more important factor in lubricity and film strength is also does not have a direct correlation with viscosity. Oil is far more complex than most people are aware.
@@xjet Yes, but you have to use the viscosity that your engine is designed for.
You didn't understand - losing viscosity means that oil got contaminated and oxidated so its flow is reduced. Over time 10w40 oil flows like 15w40 (oil is not getting thinner but rather denser because of the contaminants in it).
@@motomehanicar459 Except that one of the contaminants is petrol, which thins out the oil.
He is right though. 15% decrease in viscosity does not equal 15% decrease in lubrication.
That R32 looks beautiful there! They don't make them like this any more.
Now it's diesel ........
Never new they made 5 door R32's
@@Sander7897 17 seconds to 100mph 🙈 They sure dont make them like that anymore
@@TheRazvy1990 You still got diesel, gas, and GTE & e-Golfs which are hybrid vs full electric respectively.
Yep, thanks god they don´t make 3.0 VR6 engines with only 200hp and 15 liters/100km. We evolved.
There's a clue in the service interval - for example, 12,500 miles or 12 months, _whichever happens first_ . If you drive only 3,000 miles in a 12 month period, or drive 12,500 miles in only a 4 month period, it's time to change the oil. If you make frequent short trips that don't get the engine to optimum temperature, cut the interval in half. I have a DV6 engine and there's *no way* I'm leaving it for fear of killing the turbo, if rumours are to be believed.
New oil, fuel and air filters will make more of a difference (if any at all) than the oil itself. Especially on a petrol as many people forget about some petrols having fuel filters.
Cool Thanks! I will remember this for the GTI Clubsport MK7 seen on my channel! 👍 Maby it dont have a fuel filter though?
Was that a VW Beetle in the oil? 🤣
The VW soul !!
".....the used oil contains 2,5% petrol" - wow - that is surprising high for 10,000 miles. Nice video.
The engine will be quieter and smoother
My old Peugeot 405 diesel had 65 horsepower. Driving up a steep hill you did not need a watch to measure the time, you could feel it and hear it. On this car I changed the oil at around 5000 km. It was no old oil but still you could feel it....
That's almost as bad as the original fiat 500s
I noticed it on hill also, 2008 corsa.
The key to keeping the engine in tip top condition is to change the oil every 3 to 5,000 miles.
Very interesting and informative, thanks!
Well I have had two Corollas over the last 30 years and both only got serviced every 4 years I drive 8000 mile a year and I never had a problem, always used Mobil oil to the right spec both cars were amazing. The one I have now is an 06 so had it 15 years.
Great advice and video
Most oil pumps are driven straight from the crankshaft. The thicker the oil, the more resistance it has. Resistance on the crankshaft causes loss of power. Look at the difference between ac on and ac off 0-100 times.
The oil sample results/wear metals were really good especially for 10k miles.
R32 mk IV, the best VW they ever made
The big change in old oil vs new oil is the usable viscosity. The viscosity went down because of the non lubrication materials of water and fuel. These do not lubricate well , think what happens when you add a cup of water to the oil? But I believe the main improvement in HP and time was due to better seal in the combustion cylinders rings and thus more HP per revolution.
The other thing is tyres.
It boggles my mind to see people drive on either balded tyres or no brand ones. It's literally the only part of your car that touches the road.
Putting decent tyres on will drastically change the way your car holds the road. You'll get much better MPG and it'll be far far safer.
I agree but the MPG on tyres that grip the road better will not be better in fuel economy as there is more friction. However I have driven on cheap no name tyres on my first car and good tyres on my 2nd car and its eye opening the difference in grip is insane and anyone who drives outside of the city I recomend gets at least medium budget tyres. I think everyone should do some driving on cheap tyres and then use premium just so they understand how big the difference is.
Great video thanks
As the old oil circulates through the engine collecting microscopic particles as it sits between the gudgeon pin the big end bearings and the mains I can well believe it causes more friction thus resulting in a decrease in the optimum efficiency of the engine. Albeit minimal.
Ah Vicky. The perfect woman...
It would be interesting to know what the old oil was that came out, relative to the new oil that went in. I don't mean brand, I mean chemical composition....additives, detergents, base oil etc. A simple analogy her is.....would a sprinter set a faster 100M time in pair of "Nike Air Max Plus III" trainers or a pair of old worn out Tesco hobnail boots.
Oil changes far more important on usage then actual time. Oil quality has moved on considerably in last 20 yrs. don’t bother changing every 6 months (scam). Oil won’t degrade that quick just in the sump. It’s mainly all about usage ( unless you don’t do any real miles). So highway miles engine isn’t working as hard as lots of short trips around town. At the end of the day, if you aren’t keeping the car for life, go with manufactures oil change on mileage but if you are keeping long term half the oil change interval. It’s cheap insurance overall
Given that my car does 90% motorway miles and probably 5% city and 5% rural I though keeping to the manufactures guidlines was more than good enough. If I did low mileage I would just change it ever year since it won't hit the mileage for an oil change.
Nothing puts fear into the hearts of motorists like the subject of oil. Just the way the oil companies like it !
That’s all well and good but I’m interested in that 4 door mk4 r32!
Lower viscosity less stress on engine and better fuel consumption so how did it go faster with new oil?
I use synthetic in my RSX-S. Just changed it.
Vicky is fit. And the r32 is nice too, 3 door nicer looking.
Every 10,000 miles imo is too long to wait for an oil change
I'm sure 5k is better. But engine designers now know exactly what oil to use even before putting pen to paper.
10k miles is fine according to most manufacturers. 5k can do no harm.
its waaaaaay too long. In modern cars they say 10k miles is ok I wouldnt believe it. I change my oil always at 6k miles, Ive done it on cars 20 years old and cars 5 years old. Always change every 6k miles ( if its under warranty and it blows engine due to poor servicing and it was done every 10k miles then its on them lol )
@@Vikturus22 clean oil always better than used oil. But did you see the million mile Toyota Hilux? Gets an oil change every 10k, always has right up to the 1 million. Still runs sweet.
For me, this ends the argument. My own diesel jaguar runs at 20k miles servicing and there are no reports of blown engines or dry turbo's. Modern oils are engineered to perform like this and last longer
@@Vikturus22 It is down to the quality of oil and expectations and the control of the oil industry. In Europe nearly everyone uses full-synthetic oil as it is much more consistent and contains less shit where as in the US there is even a believe the synthetic oil is bad. The US has this 3k rule for changing oil, of course, the US is the lobby place of the world where the corporations want you to spend more on oil and it is common belief this is required. Most modern cars actually check properties of the oil, and I have only changed oil at 10K intervals over 30 years of owning cars and keep them till 10 years old after buying 3-4 year old cars and NEVER had an engine issue with my cars. Also use an independent garage that I trust and actually does the work required only when required - and actually changes the oil.
@@Tom55data excellent reply. This probably explains the huge difference in opinion between Europe and the US when it comes to oil changes. Ive never seen a worm out engine before unless oil chnages were not being done at all.
Engines that follow recommended servicing dont suffer wear issues
I so wish someone would do a "Nigella talks dirty" but with Vicki........ :)
Wow a beetle in a VW.
Class😁👍
The car also weighed a little less on the later runs due to less fuel in the tank... 😂
Needed to weigh the car, with driver (no offence Vicki), prior to each run. 👀
A small difference and would not account for the vast improvements in time that was consistent in 3 runs.....
Alfred Yuen what about change in wind speed over the 15/20 mins between the oil change?
No no. She went to the toilet and then shaved half a second of the time...
Matt Watson from carwow drained the oil and coolant from a Peugeot 206, a Ford Focus, and a Honda Civic, the focus and Peugeot lasted around 30 seconds while the Honda went on for 5 minutes WITH BEING DRIVEN AROUND it then died and he put COKE AND MENTOS IN THE ENGINE AND RADIATOR And it ran for ANOTHER MINUTE before finally giving out
Wow that difference was surprising. As I am driving only on weekends, I am only doing 5000 km per year. So my oil is not used much. When I leave it for 2 years in the engine, is that a problem because of aging??
Yes.
change it every year at least
No. If you don't drive much, you need to change the oil sooner. Twice a year, or once a year at least. Because if you oil just sits there, it absorbs moisture, it oxidises. If you do short runs, it is very bad for the oil. When the engine is cold, the air-fuel mixure is ritcher and it delutes the oil. Oil is getting contaminated with hydrocarbons and water. Only when engine reaches operating temperature, those impureties start to burn off and evaporate of the oil. If your engine only reaches operating temperature basically when you arrive to your destination, know that your oil is in a very bad condition, and needs to be changed a lot sooner.
Modern high quality oil last 2 years. Cheap mineral oil don't.
I would recomend a minimum of changing it every 1 year.
Who else misses seeing R32 Golf and Beetles on the road after watching this?
I can see mine from where I'm sitting. Mk5 though, not as cool as Mk4.
I have a MK4 but only the 2.0L.
Would love a MK4 V6 though or R32.
Dan L I’ve got a GTTDI and 1.6SR. Honestly fabulous cars.
@@joep4224 same
These golf r32s are gorgeous in that colour and those wheels. If only they where as reliable as my type r I'd buy one if I could find one in good shape.
Sure, changing oil will only help the engine but please, more than half a second faster to hit 100mph? That is like 3% faster, that means that just the oil change would give like 5% more power...on a R32 its about 15HP! Even Gran Turismo is more realistic.
the main thing the engine lasts longer without slowly losing power. You could right a book on oil related issues
Why the safety glasses while the old oil is in plastic containers boggles my mind ? Plus it seems they’re needed for looking at a screen 😃
I don’t understand why they don’t make new videos I thought they was making a new comeback
They are called Fifth Gear Recharged. They are on Quest of Discovery or something. Apparently electric cars only 🤭
No wonder people think 100k miles is high mileage when the average person is only changing oil every 10k.... Oil and filter should be done every 3-5k if you want the car to last.
This is why you see cars with 70k miles fail their emissions test, owner probably only changes oil when it goes in for its service every 10k.. Knackard a engine that can do 300k in 70k.
Initech? Was Lumbergh there?
Come to oil,,change sooner than owners manual recommend if you want to keep the car for long times
Isn't a lower viscosity oil more efficient? 0-30 offers less resistance to the motion of the engine vs 10w30.
The lower number refers to cold oil, but I get your point. I think the lubricity of old oil is worse, the viscosity isn’t the relevant factor.
The oil has to be thick enough to lubricate properly and seal properly. It also has to be thin enough to cool properly and clean properly. This car wants 5W-30 oil. VW 504.00 quality should last 2 years or 30.000 km (20.000 miles).
@@squadmeta Too thin oil will not lubricate or seal properly. Too thick oil will not cool or clean properly. The viscocity has to be right. In this case 5W-30 or 0W-30.
The problem I have is if cheaper brands are as good as more expensive brands? How can I tell if I'm not just paying for more marketed oil that's no better
What happens that once it is new the oil will stay that way forever, or that once it is used it does not change periodically ?!
it becomes very thick ..end
@volkswizard in this video 😂
lol i was thinking the exact same thing, a lot less grey then 🤣
My mk7 Audi A4 2.0tfsi oil light went off every three months and Audi uk said that’s acceptable even though I only drive 8k miles a year.
10к miles between oil changes wow, i'm changing after 6k km on mine (3.75 miles) and it's much simpler golf 4 1.6 estate /universal/vagon you name it
The VW is a manual too WHICH IS BEST
changed my oil every 5 years in my old citreon engine superb just top up the words bullshit come to mind an engine only fails with no oil its the parts around the engine that fail eg clutch alternator very rare to see a standard engine fail
Engines do fail usually because of head gasket failure. A well serviced vehicle however the engine should never fail. The clutch will burn out eventually but 5 or 6 clutche replacements is cheaper than a failed auto gear box. I have seen personally clutches last of 250k miles. City clutches obviously burn out quicker. With most cars though I agree its other things that fail and cost more than the cars worth that eventually kill it off.
Damn she's hot.
Vr6, not renowned for being clean engines. Oil out of mine is always filthy even though I change it more regularly than the recommended intervals.
I noticed more power after I changed my oil, came here to understand more.
5:37
it is shocked!😮
what is the cause of the bug inside the engine!!
It will have passed air filter maybe bad air filter or intake pipe.
@@AA-os1sg through the air filter/inlet would have been burned and sent out through exhaust valve in one form or another. More likely typical lazy or careless mechanics, pouring in the new oil using a dirty funnel which had been sitting about in the garage OR it was already in the container used to capture the used oil when it was drained.
waas this thr dunton test track
I've worked with Rob Chapman, he's a sweet goose.
Any one reckon the sump was way over torqued, hitting the rachet like that suggest more than 25nm 🤔
nope, it will get a bit stuck over time!
They should have done a test and see if engine flush actually works and use a microphone
Not just the engine, the gearbox diff and “automatic box”
Every now and then I drop the sump on my cars when doing oil changes, it’s pointless putting fresh oil in when loads of crap is sitting in the sump waiting to be mixed with your nice new oil.
Volkswizard at 4:40
Well spotted!
I only clicked on this because I have a Jazz Blue 337, its no R32 but still...
so 10k intervals is damaging this engine?
No, the ppm of metals are still in safety numbers.
@@tomasnokechtesledger1786 can’t beat nice clean oil tho
That's why it pains me to see people change oil at 25k kilometers just because the manual said so.. I change mine at 15k kilometers, around 9.5k miles. And I'd do it more often but then I'd be changing it every 3 months lol..
So funny at 1:50 there is written new and old on the caps....hmmm....can't see the difference😑
Fuckin amoebas, slowing me down
Castrol or Mobil
Quality has to be good enough. Viscocity has to be right. In this case, it is VW 504.00 quality and 5W-30 og 0W-30 viscocity. Expensive brands are just wasted money.
Shell
Honda civics from 2000 can go a very long time without an oil change as their engines are very strong so you can get like 15,000 miles between each oil change
The manufacturer's recommendations are so they last to just out of warranty.
So engines blow up just after 3 years which is the standard car manufacturers warranty? Wow...who knew...
Should of changed the air filter to
Should have changed the air filter too.
A Volkswagen is the perfect test subject CAUSE THEYRE STRONG TOO
maybe don't wait for your oil to get dirty to change it?
lee nevin - it turns darker relatively quickly.
so...if I put new oil every day in my motorcycle, I arrive earlier at work?
Yes, but you lose that time by changing the oil every night 🤦♂️
Do not understand this fuel in oil contamination story. If engine is running on long distance oil becomes hot. How it's possible that still remains in oil and not evaporate ? Vapors should then be vented via carnkcase vantilation system and burned in cylinders... Or we are talking about engine runing only on short distances and never reaching operational temperatures....
EVERYONE should know that Honda MAKE THE BEST ENGINES
Best engines? don't know about that, most reliable maybe but best not in my book!
I would agree they make some of the best engines.
Is that @volkswizard changing the oil?
Yes!! Haha I just sent him the video
Todays video was sponsored by Rockefeller
Why is a bird telling me about mechanical things?
1:24 why so far set on his lap next time.
Just cra cra 10K between oil changes? How about doing every 5K instead?
Well BMW recommend an oil change every 20,000 miles. HGVs normally have an oil change every 100,000 miles so where do these silly 6 to 10,000 mile figures come from ?
Peter Norman that’s why new bmw are braking down.
Normally the car manufacturer specifies the service interval.
Oil change intervals have increased substantially over the last few decades, due to better oils, better manufacturing of engines, better filters, probably lots of other reasons too.
Intervals of less than 6000 miles/10,000km were common 20 years ago - even for BMW's.
diesels have low tension oil rings . carbon sticks to the rings and they score the bores .changing your oil soon will stop this . oil is cheaper than a new engine
And nobody on here mentioned how gorgeous Vicky is. Proper petrol heads !
She’s a mega babe. Shwing.
Was about to post the same. Not only gorgeous but she can drive!! Remembers me mum. She drives way better than my late father 83yo and still making 600km trips no problem
I bet shes as dirty as old oil in bed.
If half the cars don't have enough oil, how many have never changed oil?
Kinda makes me think this is a warning about buying used cars.
Seller may show a book with regular maintenance done, but anyone can just rubber stamp that book.
Many people get a oil change and then put the car up for sale. If you look at the dipstick, it looks like light tan.
No mechanic is going to disassemble the engine to find the sludge.
Just get a sample on the dipstick and analyze it.
mines done 50,000 miles without oil change
Thats nothing to be proud of
audits fine but it won't do 50k more, shame because the engine has obviously been looked after to survive that
Absolute crap! Changing the oil doesn't cause more power to be noticeable in a speed run. Weather conditions, launch performance, gear changes all make big differences. If this was supposed to be scientific, you would have put the car on a dyno!
I totally agree! The lower viscosity of the old oil should make the car faster, not slower.
@@wolfschindler8921 Yes, if a difference was detectable it would be in favour of thinner oil.
But it would have increased resistance and heat due to debris
@@user-bh6zt1it2l Yes, but only to a very small extend. Most of the drag comes from the resistance of the oil.
All of you guys are wrong, no point of me writing a 15min read, just look up an episode they did with a VW Corrado. Talking about a dyno and science, 5th Gear already had done the test using a dyno on that VW Corrado I'm talking about. Look it up and see.
I hope this video wasn't financed by the oil companies. With additives now adays (especially in synthetic oil) you can go at least 10,000 miles before changing it. Now, that is in normal driving. Also, our systems are so sealed, little or no water gets in. Those "dangerous" particles that gets into the oil are usually picked up by our oil filters. The one big problem of not changing oil every 3000 miles is that you cut into the "POOR" oil company's profits!
Wow I just changed my oil and gained 50 HP :O
Christ that old oil looks more than 10,000 miles old for a petrol engine!
Used oil always looks black, even that of a petrol engine after a short OCI. It may still look golden and honey like on the dipstick but as soon as it is drained into a container you can see its actually pitch black.
Dyno would have given a better comparison .
A half second ha ha ... 😄 Why not take out the backseat instead.
Think her shift skills could improve 3 seconds every gear she takes...
That chick is so hot!
omg i want to take her!
Ahhh the British middle class and their relentless fawning over German cars.
Who gives a thing about 0.5 seconds 😂
how can you change oil every 10000 miles?!?! way too much to keep an oil...
I know right, some people though for example people who drive 30000 miles a year for work can't realistically change every 5 to 6 k miles
Morgan Morris and those people usually do highway miles, which have less wear than city miles on the oil
If you don't drive short runs, and drive on a highway most of the time, you can change it every 10.000 miles. But if it is a turbo engine and/or has a timing chain, I would change the oil every 5-6.000 miles. Oil and filters are cheap.
Bet you the oil would stay in better shape in a Japanese car 😂😂