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      03-03-2012, 09:41 PM   #5
z4z4z4
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Drives: 2002 M3
Join Date: Mar 2010
Location: mild mediterranean breezes

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Quote:
Originally Posted by javol View Post
Wow, cold... I'm not able to stay below 250 under hard driving @ an ambient of 80-85 degrees. Does it depends on my standard 35i BMW oil quality? Castrol 5-30 i believe... Do you use a diferent oil?
You must have oil coolers. I do 250 with in town stop n go driving. I saw 295 with 65 ambient last weekend (track day). Your standard issue oil is a premium grade and I say there's no additional thermal benefit with any different oil until you get heat conduction improvement with colloidal graphites or molys.....and additives are a no-no with our cars.

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