Quote:
Originally Posted by bigbcraig
Details? I just put Amsoil Yurpean 5W40 in the WRX (rated for, among other things, Mercedes Diesels and BMW N54/55), and it's running fantastic.
Owners manual says anything from 5-30 to 10-50 is alright.
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I've heard unconfirmed stories that early EJ20G's (or K's? Can't remember dammit...) were finicky about what oil they liked.
Or was it the G's were oil sensitive and the K's were fuel/octane sensitive?
Why did I even post...?