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Originally Posted by Boca_Yid
New sample results attached.
Note that even though I'm using M1 5W-40, it's shearing down to 5W-30.
Something for all you 5W-30 users to consider.
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"Nice improvement in wear" is right! Your wear metals look great and your engine broke in quicker than mine.
Don't you know that thin is in? :-) There are probably thousands of people driving around with oil that sheared down to a 20 weight. If you're concerned about the shearing, go with an ester based synthetic and see how that holds up (GC, Motul 300V, Redline, etc.).
-Dennis