Quote:
Originally Posted by Olmos64
Bish, wouldn't it be a concern, especially with a new engine, to use the 60? Looks to viscous to me, even for hard use.
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First of all I would only use the recommended oil weight during break-in. After the 1200 mile service and ONLY during warm weather conditions, (track season), would I then use the 10W-60, and in the 50/50 mix with the 0W-30. I believe that you'd get the advantages of both weights with the added bonus of protecting the engine better, along with lower oil temps, during spirited driving in warm/hot weather conditions. Remember the Castrol TWS Motorsport 10W-60 is what we used in our beloved E60 M5's; it's a great racing oil IMHO.
Bish