Quote:
Originally Posted by Jake Raby
That was written by Tony Callas, he is my co-instructor in the WTI M96 engine classes that we instruct across the country. We just finished a class yesterday and this question came up.
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He was also the one who told the one Boxster owner writing in to Excellence to be leary of Mobil 1 0-40 because of suspect levels of ZDDP and the trouble that's causing in valvetrain wear. I guess Excellence are off the Mobil 1 Holiday card list.
