I have a Saab with a b205r and the following oils have not sheared. Motul 5w40. Redline 10w40 elf 5w40. I am in The boost often 15 psi. The motul has shown the best uoa so far.
I have a redline uoa in a few months with my now modded Saab 20psi.
I have a redline uoa in a few months with my now modded Saab 20psi.
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