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Registered
Join Date: Dec 2011
Location: Westchester, NY
Posts: 1,826
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I have been using Mobile 1 (15W50 in the 944) in all of my Porsche's for the better part of a decade with out any issues and more importantly any oil leaks. I agree that in some sense oil is oil as long as you are going for one of the big makers in the right weight you are fine. On the other hand ZDDP additive is something I have read quite a bit about and am still not 100% sold on although it does make sense. The 911 guys love to use it and that is where most of my research on it was done. It may reduce wear and help preserve the engine but you will ever escape the fact that metal is rubbing on metal, it simply will wear out over time.
Regards
Dave
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'78 911SC Targa (Back In Action!)
'00 996 Carrera (New kid on the block)
'87 944 (college DD - SOLD)
'88 924s (high school DD - Gone to a better home)
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