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Always new mains, false economy to strip it this far and not replace them.
I'll be changing all the others too, I'm planning on blasting the cases, so there'll be beads/shot as well as debris in them soon ;-)
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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