Quote:
Originally Posted by Dirtbag
Kool i have been using 20w50 in the royal purple.. hexy i know but i am running royal purple for all my oils.
cheers jamie
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why royal purple?
I'm using Castrol RX Super 15w-40 diesel engine oil, also rated for petrol API SL
the spec nominates 10w-30 and is what I used for the first 100,000. I think it nominates a low viscosity grade in an effort to reduce drag and therefore conserve fuel rather than prolong engine life