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Old 08-24-2011, 08:22 AM   #3
Join Date: Mar 2006
Location: Seattle Area
Posts: 3,011
Originally Posted by ohhh my
Hi Everyone,

Previous owner said he used 0w40 mobile1 on my 03 boxster s.

I believe i read in one of the faqs that does not recommend to this oil weight..

What do you recommend for weather which is between 60 and 85 everyday of the year.
Porsche maintains a list of approved oils for their cars. It's available over an They are all 0w-40 and 5w-40 oils for the Boxster. The oil that the previous owner told you was used is one of the approved oils. There are contentions that it's not the best oil, but you can find that information in other threads here.
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