Quote:
Originally Posted by IIAp3x
A lot of guys are running 0w 40 to reduce their lead and copper count, and from what I can see many of their preceding reports do indicate a significant decrease in those two metals... Looks like a great cure for the cold start dilemma but the performance of the 40 at full operating temps seems to be the meandering debate...
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Thanks. I'm putting in Pennzoil Ultra 5w40 this weekend for the summer and am going with the m1 for winter.
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2013 c63 Amg coupe p31, v7 tune, plm headers, armytrix downpipes, EflexFuel
2008 dct coupe, evolve engine/dct tune, ttp, ms intake, megan exhaust, cf ds. Sold.