This is not my UOA but got it from a nice guy on the mazdaspeed forums. This is easily one of the best I've seen for our engine. The 40 weight sheared down to a high 30 weight, but a 30 weight is what this engine calls for anyhow. The Universal Averages are for 4,200 miles, he ran this oil 6,091 miles and had similar and sometimes less wear numbers. The previous UOA listed is w/ the same oil, the Euro forumula of PP 5w40. He had a bad air filter on it though.
I'll update later with driving style etc.
I'll update later with driving style etc.
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