[GH85Carrera]

Originally Posted by LubeMaster77

he is gonna have issues - oil lubricated bearings have seals as well as differnet tolerences, rolling elements and cages that are very different than grease lubricated ones. While about 50% of wheel bearings are oil lubricated they are used in fleet operations. You would need to do a serious retrofit. It is possible to outfit a car with oil filled bearings (if you could find one) but the questions is why ? The difference in the coef of fric isn't even measurable in that application.

And for what its worth...Grease is a combo of oil, thickener and performance additives (rust inhibs, Ep agents, stuff to make metal and grease last) and the thickener.

Back in the day (I sound like a teen when I use that phrase) grease was nothing more than crude oil and coal dust - the crude oil did the lubricating and the coal dust held it in place. Around 100 years ago lube makers started making grease by making a soap with lithium metal and mixed it with oil to form a grease that did well for the time. This is still done today - lithium greases are typically used for wheel bearings They really don't provide the protection other technologies off.

There are high temp greases that are made from clay dust that has been gelled with oil - but these greases dry out quickly and can solidify in the bearing.

There are greases that use organic materials (most common is Urea) that are OK, nothing great. And some use teflon which are expensive but again, only in very rare applications do they make sense.


The best technology out there is Calcium Sulfonates - water resistant, heat stable, hold up into very high loads. Really the best stuff.

Yea, what do you know about it. Have you written a book about it or something?