first oil change
Welcome to the LS1 world too man!
Also, I thought some folks around here weren't too keen on Royal Purple, except for the racing formulas. I'm not sure though.
Last edited by Spectator; Jan 15, 2006 at 01:35 AM.
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the m1 5w30 also gets thin later on in its life.
m1 makes a 5w40 havent tried it yet.
same with a 0w40
the germen castrol 0w30 is thinker then normal 0w30 more like a 5w35 or so.
i just picked up some amsoil 5w40

