the 4 ball wear test

[kschachn]

Originally Posted by snake123

so its a false test

Not exactly. More like a "falsely used" test. Note that generally the people who argue most that the test has relevance to an ICE are the ones who also argue most for a particular brand that does well in the test.

 

[MolaKule]

Originally Posted by snake123

4 ball test, if the chart shows Quaker synthetic oil has a less wear spot than mobile 1 does this mean you ll get more life from your engine

The four-ball wear test is a test for comparing lubricant formulations in the lab and has no real predictive powers that can be extended to in-service wear of mechanical driveline components. I thought we had clarified this point many moons ago. BTW, different tests on different steel combinations may give ambiguous results. Four-Ball Wear test

 

[wwillson]

Let's stop here