Quote:
Originally Posted by slob
I was using 'Rock Oil Synthesis 4 Racing', I don't know how it spent the first 25K miles of its life though.
I'll be switching from 10w40 to 20w50 after the rebuild.
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I'd be going the other way and using fully synthetic 0w50 in there if it was me. It's far better for a race engine and will lubricate better at all temperatures. Castrol Power 1 Racing is a good one Rob.