In the 1950's my uncle was in the Air-Force in AK., He said they added Molybdenum to all jet & prop engines. I treated my oil in my 1983 Dodge slant 6 with Moly & the idle rose before our eyes & ears, within minutes the original idle speed was racing & had to turn it way down. One winter we had -50 below zero, the slant 6 started right up, no other cars would start in the town that were parked outside.
Out of all of the additives you can go and buy from an auto parts store the MS02 is one of the very very few that really works. With any other one it is questionable if there really is anything in it other than a solvent or mineral oil and those are the ones that people call snake oil. MS02 is most certainly not snake oil. If someone tries it in a vehicle that does not yet have much wear they might not see as dramatic of a smoothness and performance increase as with a vehicle that is older. Also although it is a solid it is so fine that the oil filters don't filter it out. I am one of those people too who have used the other additives in the past and found those don't work. I once used Prolong until I found that it is chlorinated. Now when I see a new additive that seems promising to try I email the maker of it and ask just one simple question and that is does it contain any chlorinated molecules or compounds. I just tell them I am not looking for their trade secret but just want to make sure that there is none of that stuff in it.
Finally, Thank you Rafe, your explanation of MoS2, Graphene, and Hexagonal Boron TriFluoride. I am a HUGE FAN of your Lubrication Explained video RUclips series. Keep em coming
This is definitley a newly-found favorite channel of mine. For the past 23 years I have had a mystery of why Moly is such a good lubricant in my application. If I may explain: I have these small high-viscosity liquid pumps that are accurate to +/- .5ml per stroke. A stepper motor rotates a stainless leadscrew to push a bronze bushing outward. I have tried varying viscosities of almost every type of mechanical grease, both common and non-common. The reigning champ is Lightning grease which contains some moly. Every other type of grease causes premature wear of the bronze part. The Lighning grease's eventual failure is that it cakes just enough to create added resistance and the steepr motor overloads. But that takes 6 months to occur and wear is very minimal. Lithium NLGI2 grease does not dry ou but it does exhibit a lot more wear. Why is this? this is ambient conditions with much airflow around it and yet every other grease, pardon me, sucks at minimizing wear. why do you suspect that Lightning grease is so good at this application? I'm sue its complicated but you could help solve a 23 year problem for me and I would be much obliged to you! Thanks!
I swear by it mate!!!! It’s saved my bacon many times when my engine ran low on oil!!! Mos2 by liqui moly has been specifically engineered for engine use its bloody amazing
My front differential was acting up and did not feel good in turns. I just added a little bit to the oil in it and never had that problem again! It was starting to bind a little and in parking lots the tires would make noises at very low speeds and especially in tight turns. I am thinking of draining that front differential to make sure that while it was doing that in the past my gears were not getting destroyed. I say in the past since it seems to have stopped doing it or does not do it nearly as much. Of course I hear that it is not unusual for an AWD vehicle to make those noises as they age but honestly if it did that when it was new I would be back at the dealer demanding they buy it back!!
I am not sure what you mean by consumable but it does seem to be an additive worth using whenever there is any chance that it would not cause any adverse effects. Adverse effects would be slipping it may cause if there are any clutches it may come in contact with. I added a small dose to the front and rear differentials of my Nissan Rogue but only after verifying that there are no friction dependent parts like clutches that could be affected. They do make a gear oil additive which probably just has the additive in gear oil instead of motor oil.
lucus pure synthetic oil stabilizer.....can affect MOFT ( it can lower MOFT, oil thickness need to lift rod bearing ).....also my valve train.....make noise when i use it......not good.....in modern car.....
Great video. Im interested in moly and graphite in non-filtered uses, differentials and gearboxes. I know they (oil companys) add moly to the "fuel mileage oils". I guessing the moly must be ground down to a small-small size as to not clog filters, thats why I stay away from them for filtered enviroments. Now this video has given me ideas, why hasn't the racers or semi trucks "moly coated" gears and differentials! I was wondering if I was on the right track adding moly and graphite in differential and gearbox enviroments and this video answered that. Thx
In general the "high mileage oils" contain MoDTC. MoDTC (Molybdenum Dithiocarbamate) is an oil-soluble additive that's typical in engine oils. It acts a little bit like ZDDP inasmuch as it has an affinity for metal surfaces, and forms a surface film in the load zone. Where ZDDP forms a S/P later, MoDTC forms MoS2 in the load zone.
Here I am, researching materials found in gun lubricants and stumbled upon this great video! A few of the lubricants I'm researching have gone out of their way to say that they've included moly into their lubricants to help further penetrate the metal surfaces and claims that it virtually "eliminates" friction wear and lasts x times longer than other leading brands. Does moly have a point where when heated it penetrates into metal better? A few of the application directions for these companies reccomended applying the lubricant and then using a device to heat the surface for however long. I've only seen these directions with the few companies that include the moly.
Glad it was helpful! As @Unkown1 explained, MoDTC (Molybdenum Dithiocarbamate) is an oil-soluble additive that's typical in engine oils. It acts a little bit like ZDDP inasmuch as it has an affinity for metal surfaces, and forms a surface film in the load zone. Where ZDDP forms a S/P later, MoDTC forms MoS2 in the load zone. Given it's an uncontrolled chemical process I would theorise (without experimental proof mind you) that the MoS2 layer formed would be less effective than actual MoS2 solid lubricants in which the particle size and arrangement can be controlled as part of the manufacturing process.
Great to hear! If you're looking for something a bit more structured there's a bunch of courses on the website lubrication.expert/product/lubrication-exchange/ . Otherwise hopefully there's enough videos on the channel to keep you busy.
Excavators are an interesting example to consider. 99% of things being lubricated require a quality moly grease (at least here in Aus). The 1% is unfortunately the most expensive thing to replace, it being the slew bearing. You can use a moly grease to lubricate the slew bearing but if it isn't carefully considered and the wrong grease used, rollers in the bearing can be forced to slip rather than roll. I have seen a few examples of failed slew bearings where slipping rollers have hindered the failure analysis of the bearings because an OEM wanted to attribute the root cause of the failure to roller slipping rather than the more obvious cause of grease starvation of the roller race which is due to poor design.
The leading Moly is MolySlip (UK) or Mr. Moly (U.S.) The key to Moly as an additive to engine oil is keeping the solid (Moly) suspended in the oil which is the carrying agent. MolySlip (Mr. Moly is refined down to 1/2 a micron so will stay suspended. Some Moly additives on the market are much larger than this and the moly will settle out of the oil and go to the bottom of the pan, also being very large (over 1 micron +) it can become an abrasive (being very hard) and damage bearings and metal parts. NOT all Moly additives are the same. MolySlip was developed in the 1940's as an additive by Baron Beck and became a solution for oil starvation problem in Spitfies in combat. Dr. Beck was Nighted for his development and contribution to the war effort. Another MolySlip usted still today in F1 by a lot of teams is CopaSlip Anti Seize compound.
Hello how r u? I really appreciate the person that u r and great content. I'm hooked on u and Lake Speed Jr. I sent u several questions on the "boron" and "calcium" and "esters" topic but I know u r a busy guy. But here's another one... What about Antimony in oil. I saw a break down on 'Ford boss me' about Shaeffers Moly ep and it was really amazing. He put in the normal amount and then lab tested it later. It doubled the viscosity only when hot. How exactly does that work. Is Antimony a good ep additive? I just happen to have a motor that I rebuilt twice and has good oil pressure except when it's 100 degrees out and it's at idle. I went in the ecu and raised idle and also am running a 20/50 with 20.8 cst viscosity. That's pretty high. I also got my cooling system running 20 degrees lower. But it's still an issue. So in this one scenerio it may help me. He said it went in as a 5w30 and came out a 0w50 or 10w60. So the low cold viscosity basically didn't change. But the upper limit did. I think there's very little Moly in it and it's Antimony. What r your thoughts? How does Antimony compare to Boron? And the way that it's heat-reactive? I sent a few other in depth questions about Boron on those other teachings that I mentioned. I know u r busy.... Zero pressure... But I'd love to hear from u on those subjects. It's your fault... Youre a likeable guy w super great teachings on these subjects for oil-needs like me😅. Thanks again
almost all motor oil In east asia, where many of us using scooter/matic motorcycle, is also using moly as additive (except manual gear motorcycle). Does this mean scooter/matic can also using pcmo and hdeo because they have similiar additive? Thx for the answer 💯
funny how l-m molygen has a little moly. mostly a organic -tungsten. organic -tungsten has nice properties. what i immediately see, the oil darkening is so slower... can you discuss ws2 dust in engine oils?
Good question. I might not get around to a dedicated video soon just because there are so many other subjects to cover and it's a pretty niche additive at this point. Some quick comments though: Overall, WS2 seems (I don't have much experience here) to outperform MoS2 on most metrics. Coefficient of friction is lower, load bearing capacity is higher, and the operating temperature window is higher. The exception is in a vacuum, where MoS2 is able to operate at higher temperature extremes, hence it's applications in space industry. The main advantage of MoS2 is cost. Both are naturally occurring minerals, but Molybdenite is reasonably common whereas Tungstenite is quite rare and therefore most WS2 is synthesised.
Great video and explanation. I would like to know why some manufacturers of equipment limit the content of moly in the grease to 3%. This is the case of some big front shovels in mining. What is the impact of the moly content?
Great question! I don’t know the answer for sure, but I’d guess that there’s a limit to the solids content. The NLGI number of the grease (the “thickness”) is mostly governed by the amount of thickener, which usually makes up 10-30% of the grease by volume (the remainder is base oil). With only 20% of a grease being thickener, I’m guessing adding anything above 3-5% moly would start to impact the thickness and flow characteristics.
Thank You for your answer. Now, I've also heard about problems caused by moly in bearings (Ball and Roller bearings). In fact I had a swing bearing failure in a EX3600 and someone from the dealer mentioned the fact that we were using grease with 3% moly which is not recommended for Roller bearings. Why does moly affect Roller and Ball bearings? IS that Real?
@@carlosalbertocaamanojaraba211 Another good question - it's possible. MoS2 particles are typically in the range of 1-100 micron. As covered in this video: ruclips.net/video/ke7hgVFAFOs/видео.html the thickness of an oil film in a roller bearing is on a similar scale, so there's the potential that the MoS2 particles are causing three-body erosion.
Thanks! Just a quick question though - when you say Potassium do you mean Phosphorous? I don't think I've ever seen Potassium in a gear oil unless it was a contaminant...
@@KarolosAthens I see. So in that particular molecule I believe that Potassium is itself inert. Borated esters belong to a class of anti-oxidant / antiwear additives that function a little bit like ZDDP. The antiwear chemistry isn't well understood but it's believed that they deposit Boron Nitride layers in the load zone. Here's a previous video on Boron in lubricants: ruclips.net/video/xGDJimjYBFw/видео.html
I saw an oil analysis of “liqui moly” and the molybdenum was actually very low. It may be because the moly was the other form He mentioned in this video.
Hi I bought a bag of tungsten disulfide sulfide powder online and saw complaints that it was Molybdenum instead. How can I test to see which it is? Thanks
Honestly, the easiest way is probably to do a standard use oil analysis test. I'd take a sample of engine oil, and add the powder to it, then get it tested (make sure the lab is testing for both Moly and Tungsten in ICP metals). Depending on which one increases, you'll know which it is. Use oil analysis testing usually costs about $30 AUD - ALS and Caterpillar dealers are the most widespread labs.
@@LubricationExplained Thanks for the response. So there is no simple way to test what you are being sold? So companies could be selling cheap Molly off as Tungsten? I use it for bicycle chains.
thanks, loved the playing cards analogy. Please tell me, why is particle size so important, being tech, techfine and superfine, who would prefer a finer PS? and what would a more coarse grade be better used in? thanks so much
Great question! Generally its down to the surface finish of what you're trying to lubricate. If the surface finish on a gear tooth has a peak-trough height of 20 micron, then a 1 micron Moly particle will just sit on the low side and be ineffective.
Please help. I want your advice on using either Polyurea (di-urea) grease vs Molybdenum (MOS2) grease such as Liqui Molly LM47 in car CV joints (tripod & Rzeppa). I dont know which type of grease has been used before in my cars CV joints so I will be eliminating the old grease to avoid any grease incompatibility issues. So which grease is a better option ? Or should we use Polyurea (di-urea) grease in tripod joint & MOS2 in Rzeppa ? I am getting mixed opinions on these. An expert like you can put an end to this confusion :)
Personally I’d go with the Polyurea as long as it’s shear stable. CV joint temperatures can end up being pretty high and being non-metal containing is a big advantage for the polyureas (metals being oxidation catalysts).
They sell this to put in your engine oil which to me doesn’t make sense because the oil itself should be formulated with the right balance of additives from the start to protect your engine. Sounds like it has its uses but maybe not as an extra additive for your engine oil. Thanks for the explanation on how it works!
Believe me I’ve been using mos2 by liqui moly for years!! Also what you’re saying is wrong if you look at most engine oils they do in-fact use moly disulphide as a friction modifier additive package in their oils
Good question. I can't really talk to the specifics of the product as I haven't seen it in use, but like most pour-in treat products it more or less works by increasing the amount of additive. Whether you need it or not really depends not he quality of the lubricant you're currently using. Most engine oil manufacturers formulate oils with as little additive as they need to to optimise performance, because excessive additives act as oxidation catalysts and can precipitate into sludge and deposits. For the three specific additives you were talking about, here are hopefully some helpful videos: Boron: ruclips.net/video/xGDJimjYBFw/видео.html Esters: ruclips.net/video/sBZWF-QMQMI/видео.html Zinc: ruclips.net/video/3PeqJqss0Ao/видео.html
Good question, because Sulphur is known to poison catalysts. From what I've read, MoS2 is thermally stable enough that the Sulphur remains bonded to the Moly, and therefore does not react with the catalysts. So theoretically, yes, it should be safe for use.
@@LubricationExplained ok. example of claim: Wear Mechanisms of Hydrogenated DLC in Oils Containing MoDTC also in BMW motorrad users manual that forbid oil containing moly
@@silkroadm6380 man I’ve had nothing but good things to say about mos2 it has saved my engine multiple times when it ran basically without oil, I had a severe engine oil consumption issue and I few times I’ve just neglected to check the oil level and found it bone dry!! The mos2 definitely prevented catastrophic engine failure!!
I bought some moly additive from jcwhitney about 25 years ago to put in a 1968 Ford 390 v8. I didn’t notice anything, just was hoping it reduced friction.
@@christopherwertman125 From experience lubricating oil finds its way past the rings and guides and gets burnt in the combustion chamber. Some engines burn more oil than others.
In the 1950's my uncle was in the Air-Force in AK., He said they added Molybdenum to all jet & prop engines. I treated my oil in my 1983 Dodge slant 6 with Moly & the idle rose before our eyes & ears, within minutes the original idle speed was racing & had to turn it way down. One winter we had -50 below zero, the slant 6 started right up, no other cars would start in the town that were parked outside.
Out of all of the additives you can go and buy from an auto parts store the MS02 is one of the very very few that really works. With any other one it is questionable if there really is anything in it other than a solvent or mineral oil and those are the ones that people call snake oil. MS02 is most certainly not snake oil. If someone tries it in a vehicle that does not yet have much wear they might not see as dramatic of a smoothness and performance increase as with a vehicle that is older. Also although it is a solid it is so fine that the oil filters don't filter it out. I am one of those people too who have used the other additives in the past and found those don't work. I once used Prolong until I found that it is chlorinated. Now when I see a new additive that seems promising to try I email the maker of it and ask just one simple question and that is does it contain any chlorinated molecules or compounds. I just tell them I am not looking for their trade secret but just want to make sure that there is none of that stuff in it.
Finally, Thank you Rafe, your explanation of MoS2, Graphene, and Hexagonal Boron TriFluoride. I am a HUGE FAN of your Lubrication Explained video RUclips series. Keep em coming
Wow, thank you Alex!
This is definitley a newly-found favorite channel of mine. For the past 23 years I have had a mystery of why Moly is such a good lubricant in my application. If I may explain: I have these small high-viscosity liquid pumps that are accurate to +/- .5ml per stroke. A stepper motor rotates a stainless leadscrew to push a bronze bushing outward. I have tried varying viscosities of almost every type of mechanical grease, both common and non-common. The reigning champ is Lightning grease which contains some moly. Every other type of grease causes premature wear of the bronze part. The Lighning grease's eventual failure is that it cakes just enough to create added resistance and the steepr motor overloads. But that takes 6 months to occur and wear is very minimal. Lithium NLGI2 grease does not dry ou but it does exhibit a lot more wear. Why is this? this is ambient conditions with much airflow around it and yet every other grease, pardon me, sucks at minimizing wear. why do you suspect that Lightning grease is so good at this application? I'm sue its complicated but you could help solve a 23 year problem for me and I would be much obliged to you! Thanks!
I swear by it mate!!!! It’s saved my bacon many times when my engine ran low on oil!!!
Mos2 by liqui moly has been specifically engineered for engine use its bloody amazing
My front differential was acting up and did not feel good in turns. I just added a little bit to the oil in it and never had that problem again! It was starting to bind a little and in parking lots the tires would make noises at very low speeds and especially in tight turns. I am thinking of draining that front differential to make sure that while it was doing that in the past my gears were not getting destroyed. I say in the past since it seems to have stopped doing it or does not do it nearly as much. Of course I hear that it is not unusual for an AWD vehicle to make those noises as they age but honestly if it did that when it was new I would be back at the dealer demanding they buy it back!!
Mate, I absolutely love this channel. This content delivered at this level of understanding is spot on.
The quality of your channel is so freaking good. Keep up the good work. Much appreciated!
after my upcoming masters defence on lubrication i would like to further investigate moly especially its usage as a consumable
I am not sure what you mean by consumable but it does seem to be an additive worth using whenever there is any chance that it would not cause any adverse effects. Adverse effects would be slipping it may cause if there are any clutches it may come in contact with. I added a small dose to the front and rear differentials of my Nissan Rogue but only after verifying that there are no friction dependent parts like clutches that could be affected. They do make a gear oil additive which probably just has the additive in gear oil instead of motor oil.
I use Synthetic oil 0W20, one quart of Lucas Pure Synthetic Oil Stabilizer for newer cars and MoS2. My engine is silky smooth.
lucus pure synthetic oil stabilizer.....can affect MOFT ( it can lower MOFT, oil thickness need to lift rod bearing ).....also my valve train.....make noise when i use it......not good.....in modern car.....
Beautifully illustrative molecular activities of lubricant. Thanks a lot .Worth watching video. 👍👍
Great video. Im interested in moly and graphite in non-filtered uses, differentials and gearboxes. I know they (oil companys) add moly to the "fuel mileage oils". I guessing the moly must be ground down to a small-small size as to not clog filters, thats why I stay away from them for filtered enviroments. Now this video has given me ideas, why hasn't the racers or semi trucks "moly coated" gears and differentials! I was wondering if I was on the right track adding moly and graphite in differential and gearbox enviroments and this video answered that. Thx
In general the "high mileage oils" contain MoDTC. MoDTC (Molybdenum Dithiocarbamate) is an oil-soluble additive that's typical in engine oils. It acts a little bit like ZDDP inasmuch as it has an affinity for metal surfaces, and forms a surface film in the load zone. Where ZDDP forms a S/P later, MoDTC forms MoS2 in the load zone.
The SAE studies I've read, that MoDTC needs ZDDP to work synergisticly.
Here I am, researching materials found in gun lubricants and stumbled upon this great video! A few of the lubricants I'm researching have gone out of their way to say that they've included moly into their lubricants to help further penetrate the metal surfaces and claims that it virtually "eliminates" friction wear and lasts x times longer than other leading brands. Does moly have a point where when heated it penetrates into metal better? A few of the application directions for these companies reccomended applying the lubricant and then using a device to heat the surface for however long. I've only seen these directions with the few companies that include the moly.
Amazing information dude, first of its kind on the internet for us to see. Thenk you!!
Thanks. I did not know the different arrangements of moly disulfide. I also have heard some are oil soluble and others are not.
mo-dtc, which is liquid, not a dust.
Glad it was helpful! As @Unkown1 explained, MoDTC (Molybdenum Dithiocarbamate) is an oil-soluble additive that's typical in engine oils. It acts a little bit like ZDDP inasmuch as it has an affinity for metal surfaces, and forms a surface film in the load zone. Where ZDDP forms a S/P later, MoDTC forms MoS2 in the load zone. Given it's an uncontrolled chemical process I would theorise (without experimental proof mind you) that the MoS2 layer formed would be less effective than actual MoS2 solid lubricants in which the particle size and arrangement can be controlled as part of the manufacturing process.
I love tribology... glad to see these education videos.
Excellent explanation of MoS2 lubricatio !!
Earned my subscription !!!
Great explanation thank you! I'm transitioning into an M&P role and these videos help a ton!
Great to hear! If you're looking for something a bit more structured there's a bunch of courses on the website lubrication.expert/product/lubrication-exchange/ . Otherwise hopefully there's enough videos on the channel to keep you busy.
Excavators are an interesting example to consider. 99% of things being lubricated require a quality moly grease (at least here in Aus). The 1% is unfortunately the most expensive thing to replace, it being the slew bearing. You can use a moly grease to lubricate the slew bearing but if it isn't carefully considered and the wrong grease used, rollers in the bearing can be forced to slip rather than roll. I have seen a few examples of failed slew bearings where slipping rollers have hindered the failure analysis of the bearings because an OEM wanted to attribute the root cause of the failure to roller slipping rather than the more obvious cause of grease starvation of the roller race which is due to poor design.
The leading Moly is MolySlip (UK) or Mr. Moly (U.S.) The key to Moly as an additive to engine oil is keeping the solid (Moly) suspended in the oil which is the carrying agent. MolySlip (Mr. Moly is refined down to 1/2 a micron so will stay suspended. Some Moly additives on the market are much larger than this and the moly will settle out of the oil and go to the bottom of the pan, also being very large (over 1 micron +) it can become an abrasive (being very hard) and damage bearings and metal parts. NOT all Moly additives are the same. MolySlip was developed in the 1940's as an additive by Baron Beck and became a solution for oil starvation problem in Spitfies in combat. Dr. Beck was Nighted for his development and contribution to the war effort. Another MolySlip usted still today in F1 by a lot of teams is CopaSlip Anti Seize compound.
Hello how r u? I really appreciate the person that u r and great content. I'm hooked on u and Lake Speed Jr. I sent u several questions on the "boron" and "calcium" and "esters" topic but I know u r a busy guy. But here's another one... What about Antimony in oil. I saw a break down on 'Ford boss me' about Shaeffers Moly ep and it was really amazing. He put in the normal amount and then lab tested it later. It doubled the viscosity only when hot. How exactly does that work. Is Antimony a good ep additive? I just happen to have a motor that I rebuilt twice and has good oil pressure except when it's 100 degrees out and it's at idle. I went in the ecu and raised idle and also am running a 20/50 with 20.8 cst viscosity. That's pretty high. I also got my cooling system running 20 degrees lower. But it's still an issue. So in this one scenerio it may help me. He said it went in as a 5w30 and came out a 0w50 or 10w60. So the low cold viscosity basically didn't change. But the upper limit did. I think there's very little Moly in it and it's Antimony. What r your thoughts? How does Antimony compare to Boron? And the way that it's heat-reactive? I sent a few other in depth questions about Boron on those other teachings that I mentioned. I know u r busy.... Zero pressure... But I'd love to hear from u on those subjects. It's your fault... Youre a likeable guy w super great teachings on these subjects for oil-needs like me😅. Thanks again
almost all motor oil In east asia, where many of us using scooter/matic motorcycle, is also using moly as additive (except manual gear motorcycle). Does this mean scooter/matic can also using pcmo and hdeo because they have similiar additive? Thx for the answer 💯
funny how l-m molygen has a little moly. mostly a organic -tungsten.
organic -tungsten has nice properties. what i immediately see, the oil darkening is so slower...
can you discuss ws2 dust in engine oils?
Good question. I might not get around to a dedicated video soon just because there are so many other subjects to cover and it's a pretty niche additive at this point. Some quick comments though:
Overall, WS2 seems (I don't have much experience here) to outperform MoS2 on most metrics. Coefficient of friction is lower, load bearing capacity is higher, and the operating temperature window is higher. The exception is in a vacuum, where MoS2 is able to operate at higher temperature extremes, hence it's applications in space industry.
The main advantage of MoS2 is cost. Both are naturally occurring minerals, but Molybdenite is reasonably common whereas Tungstenite is quite rare and therefore most WS2 is synthesised.
Great video and explanation. I would like to know why some manufacturers of equipment limit the content of moly in the grease to 3%. This is the case of some big front shovels in mining. What is the impact of the moly content?
Great question! I don’t know the answer for sure, but I’d guess that there’s a limit to the solids content. The NLGI number of the grease (the “thickness”) is mostly governed by the amount of thickener, which usually makes up 10-30% of the grease by volume (the remainder is base oil). With only 20% of a grease being thickener, I’m guessing adding anything above 3-5% moly would start to impact the thickness and flow characteristics.
Thank You for your answer.
Now, I've also heard about problems caused by moly in bearings (Ball and Roller bearings). In fact I had a swing bearing failure in a EX3600 and someone from the dealer mentioned the fact that we were using grease with 3% moly which is not recommended for Roller bearings.
Why does moly affect Roller and Ball bearings? IS that Real?
@@carlosalbertocaamanojaraba211 Another good question - it's possible. MoS2 particles are typically in the range of 1-100 micron. As covered in this video: ruclips.net/video/ke7hgVFAFOs/видео.html the thickness of an oil film in a roller bearing is on a similar scale, so there's the potential that the MoS2 particles are causing three-body erosion.
Very Very excellent article. About " building" but phenomenon !!! Potassium in gear oils please....
Thanks! Just a quick question though - when you say Potassium do you mean Phosphorous? I don't think I've ever seen Potassium in a gear oil unless it was a contaminant...
Potassium borate dispersion ( polymer )
@@KarolosAthens I see. So in that particular molecule I believe that Potassium is itself inert. Borated esters belong to a class of anti-oxidant / antiwear additives that function a little bit like ZDDP. The antiwear chemistry isn't well understood but it's believed that they deposit Boron Nitride layers in the load zone. Here's a previous video on Boron in lubricants:
ruclips.net/video/xGDJimjYBFw/видео.html
Please do a video about liqui moly 🙏
Will see what I can do. I'm not usually one for evaluating specific brands/products but might be able to do it in a roundabout way.
ruclips.net/video/WlrQc4-47SQ/видео.html In case you missed it!
Why are there some oils with zero moly? Some very good oils I might add. What are they using instead and why do they choose not to use moly?
Great video, does it perform better than ZDDP additives?
Kindly requested to make informative vdo on PTFE + MoS2 coating on Engine Bearings.
Doesn anyone know if 'Kroon-Oil MoS2' is similar to 'Liqui Moly LM47 MoS2'? Kroon Oil MoS2 is the only one easily available where I live.
I saw an oil analysis of “liqui moly” and the molybdenum was actually very low. It may be because the moly was the other form He mentioned in this video.
Great videos. Keep them coming.
Thanks!
I wanted to make a Moly liquid lube like Neolube. How much powder to alcohol would be needed to. using like a 2oz bottle.
Liqui moly use mos2 all of their oils , I mean expensive oils has mos2 more than others. You can see mos2 green color in mobile one 0w20
Moly had a big following for a while as a bullet coating in firearms until the industry moved onto boron which proved superior
Great explanation. How do you make your animations?
Thanks John! It’s actually all PowerPoint 😛
Pure gold!!
Thanks!!
How can MoS2 be used in hight Pressure 300bar and more air application if ther is sulfur in it, why Dosen't it ignite and is safe in this areas ? 🤔
You're On to It :) Everything they wanted to know... 'fraid to ask? :)
Hopefully!
Hi I bought a bag of tungsten disulfide sulfide powder online and saw complaints that it was Molybdenum instead. How can I test to see which it is? Thanks
Honestly, the easiest way is probably to do a standard use oil analysis test. I'd take a sample of engine oil, and add the powder to it, then get it tested (make sure the lab is testing for both Moly and Tungsten in ICP metals). Depending on which one increases, you'll know which it is. Use oil analysis testing usually costs about $30 AUD - ALS and Caterpillar dealers are the most widespread labs.
@@LubricationExplained Thanks for the response. So there is no simple way to test what you are being sold? So companies could be selling cheap Molly off as Tungsten? I use it for bicycle chains.
Excellent!
Thank you! Cheers!
thanks, loved the playing cards analogy. Please tell me, why is particle size so important, being tech, techfine and superfine, who would prefer a finer PS? and what would a more coarse grade be better used in? thanks so much
Great question! Generally its down to the surface finish of what you're trying to lubricate. If the surface finish on a gear tooth has a peak-trough height of 20 micron, then a 1 micron Moly particle will just sit on the low side and be ineffective.
Rafe, what is meant when 3% or 5% is listed in a TDS.
Un fact some OEM's limit this percentage, for example to 3% for the bucket pin in a front shovel. Why is this?
How about castrol titanium. What do they use?
Good question. The honest answer at the moment is, I don't know. The little I've read about it is very cryptic.
I was wondering the same thing. A few companies are using Titanium, but I wonder if it replaces Moly or is mixed in with it.
Please help. I want your advice on using either Polyurea (di-urea) grease vs Molybdenum (MOS2) grease such as Liqui Molly LM47 in car CV joints (tripod & Rzeppa). I dont know which type of grease has been used before in my cars CV joints so I will be eliminating the old grease to avoid any grease incompatibility issues. So which grease is a better option ? Or should we use Polyurea (di-urea) grease in tripod joint & MOS2 in Rzeppa ? I am getting mixed opinions on these. An expert like you can put an end to this confusion :)
Personally I’d go with the Polyurea as long as it’s shear stable. CV joint temperatures can end up being pretty high and being non-metal containing is a big advantage for the polyureas (metals being oxidation catalysts).
@@LubricationExplained Thank you very much.
In your opinion would a dry moly lube be better than a dry PTFE lube or the same?
Depends on the application really. For the most part, moly will do pretty well.
Thank you.
Welcome!
Wow you're a king
Thanks!
They sell this to put in your engine oil which to me doesn’t make sense because the oil itself should be formulated with the right balance of additives from the start to protect your engine. Sounds like it has its uses but maybe not as an extra additive for your engine oil. Thanks for the explanation on how it works!
Believe me I’ve been using mos2 by liqui moly for years!! Also what you’re saying is wrong if you look at most engine oils they do in-fact use moly disulphide as a friction modifier additive package in their oils
is it possible to plasma spray or vacuum sputtering mos2 on metal surfaces?
Yes, in fact, that's how it's achieved on satellites. I think that's how the Moly on piston rings is deposited too.
@@LubricationExplained interesting that mos2 decomposition temperature only about 650ºC
Is Liqui Moly Mos2 a tri-nuclear?
can you tell me about archoil 9100 it's got ester and boron and zinc? and hotshots ?
Good question. I can't really talk to the specifics of the product as I haven't seen it in use, but like most pour-in treat products it more or less works by increasing the amount of additive. Whether you need it or not really depends not he quality of the lubricant you're currently using. Most engine oil manufacturers formulate oils with as little additive as they need to to optimise performance, because excessive additives act as oxidation catalysts and can precipitate into sludge and deposits. For the three specific additives you were talking about, here are hopefully some helpful videos:
Boron: ruclips.net/video/xGDJimjYBFw/видео.html
Esters: ruclips.net/video/sBZWF-QMQMI/видео.html
Zinc: ruclips.net/video/3PeqJqss0Ao/видео.html
¡Gracias!
Wow, thanks for the super thanks!
Is this safe for catalitic converter in diesel?
Good question, because Sulphur is known to poison catalysts. From what I've read, MoS2 is thermally stable enough that the Sulphur remains bonded to the Moly, and therefore does not react with the catalysts. So theoretically, yes, it should be safe for use.
Have you ever hear about moly additive in engine oil will corrode moly engine coating in piston or piston's ring?
Haven't personally heard that - but that's not to say it doesn't happen.
@@LubricationExplained ok. example of claim:
Wear Mechanisms of Hydrogenated DLC in Oils Containing MoDTC
also in BMW motorrad users manual that forbid oil containing moly
Do you mean Boron Nitride?
Hi mate,
Can I use CeraTec liqui moly for 2013 Mercedes Vito van 122CDI?
Don’t use ceratec use mos2
@@filiplaskovski9993
Thanks for reply!
I heard CeraTec is better but not sure?
Did u use both?
@@silkroadm6380 man I’ve had nothing but good things to say about mos2 it has saved my engine multiple times when it ran basically without oil, I had a severe engine oil consumption issue and I few times I’ve just neglected to check the oil level and found it bone dry!! The mos2 definitely prevented catastrophic engine failure!!
Does anyone have knowledge or experience with adding Moly to engine oil?
I bought some moly additive from jcwhitney about 25 years ago to put in a 1968 Ford 390 v8.
I didn’t notice anything, just was hoping it reduced friction.
👍👍
Moly really fouls spark plugs.
And oxygen sensors.
Why would it be in the combustion chamber though anyway?
@@christopherwertman125 From experience lubricating oil finds its way past the rings and guides and gets burnt in the combustion chamber. Some engines burn more oil than others.
Without mos2 owning a Subaru motor would be nightmarish
I wonder is HBN will start to see more adoption too.