In WI I would run 15/50 summer and 0/40 winter.
15/50 has very high ZDDP, like Diesel oil style high.
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I'm not a doctor, but I'll have a look.
'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k
Six others from BMW, GM, and Ford.
Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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