What oil weight are the turbo guys running?
- Thread starter ferfont1
- Start date
Correction.... Mine is 15-40 Rotella
so does this diesel oil have any ill effect on stock built 03-04 cobra motors? or just use it for loose built aftermarket motors?
5w20 Mobile 1. Last motor looked fresh inside after 3 years of beating on it with my turbo setup at over 600hp. I'll be using the same oil again.
royal purple 5-20 here only problems i've ever had have been fuel related and when disassembled bearings all looked fresh.
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