What oil... Southern california

[blue2000s]

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 Renntech.org. 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.

[Idaho Red Rocket 3]

I use 10W40 Mobil 1. Keep in mind most of us own a 986 which are 8 to 15 years old. When these cars were new the oil recomendations were different. My car is a 2000 S. My owners manual says to use synthetic 10W40 or 15W50 "SH". Now days "SH" is no longer available. Around here all I can find is SL or SN. I can find "SG" in Mobil 1 10W40 motorcycle oil. Sometime I use that.

[thstone]

I live in LA and use Mobil 1 10W-40 High Mileage and change every 3,000 miles or 4 track days, whichever comes first.

According to Mobil, the "high mileage" version contains extra anti-wear additives and seal conditioners.

[jcb986]

I use Castro Synthetic 10/40. I live in Florida.