The Best Tests

[Jim Allen]

I read with interest the controversy over the recent Amoil comparison tests. Many people discounted the four-ball test for motors oils, for example. What I'd like to do here is start a thread on what ARE the important tests for us to look for, and at, when they become available?

 

[ARB1977]

UOA's in my opionion would be the best test of them all. Some oils work great in some engines but dont shine in others.

 

[LarryL]

A uoa might not be the best test of an oil. There are too many other factors. A good oil in an engine with a problem would look good on a uoa. A good oil cleaning up an engine can also look bad. The real world value of an oil is sometimes hard to figure out. A bypass filter can also make reading a uoa different. The engine could be producing a lot of wear particles that would normally show up in a particle count but get caught by the filter. The uoa might look good but the engine might not be so good.

 

[LarryL]

quote:

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A good oil in an engine with a problem would look good on a uoa.

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...should read, A good oil in an engine with a problem would look BAD on a uoa.