I guess 100,000's of Porsche owners are wrong using Mobile 1
Here is the latest approved oil list I could find
http://www.6speedonline.com/forums/attachment.php?attachmentid=360516&d=1397652287
none of them are 10W-40
Only makes sense that a thinner oil for startup is better
Its your motor, use what ever oil you want
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2004 Boxster S 6 speed - DRL relay hack, Polaris AutoTop DIY
2004 996 Targa Tip
Instructor - San Diego region
2014 Porsche Performance Driving School
2020 BMW X3, 2013 Ram 1500, 2016 Cmax, 2004 F-150 "Big Red"
Last edited by JayG; 09-16-2015 at 06:19 AM.
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