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Old 05-12-2008, 07:30 AM
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aldo aldo is offline
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Quote:
Originally Posted by DarkWolf40 View Post
My dad used to say you should stick to one brand, in other words if you start using Valvoline, you shouldn't add Pnsoil later because sometimes different sources of crud don't mix well. My hot-rod mechanic says if the owners manual says 10W40, to use 10W30.
Now I'm really confused.
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Last edited by aldo; 05-12-2008 at 07:38 AM.
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