What engine oil for 650+ after breakin?
pretty much anyone who goes fast at boneville uses it
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IMO as long as you stay on top of your fluid changes it really doesnt matter what brand you use... however... I think the brand of filter is more important than the brand of oil. Call me crazy but thats what I believe... thats why I use a $9-10 Mobil 1 filter.
I broke in with Joe Gibbs, then swapped to rotella T, have run it for past 4 changes. What you think? Total of about 8k miles with rotella T.

I've been using the Rotella 5/40 syn for a while now and like it a lot. Wish they made the same weight in the non syn variety, I'd run it and change it more often.






