Motor Oils

[Larry Herman]

To quote a portion of the article:

"We have to make it clear that this experiment only tests one specific attribute of each oil, so while the oils we tested may have performed poorly under these test conditions, they may perform better in other tests.  Your engine bearings have a much larger surface area than in our test (obviously), so the wear characteristics will not be anywhere near as severe."

I have heard this test severely criticised for being completely one-dimensional and not really appropriate for testing automotive oils, as they never see anywhere near these kinds of loads unless a bearing or other part is already failing.