mixing synthetic oil

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Mar 17, 2004 | 12:05 PM

londa hover

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Joined: Mar 2004

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From: sailand, road island, usa

mixing synthetic oil

im in the middle of changing my oil and just found out i only have 2 quarts of amsoil left and i need 3 1/2 quarts for my car. can i go buy 2quarts of castrol syn. and just mix them? or is that not good for my car?

Mar 17, 2004 | 12:06 PM

Curtisbeef

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Joined: Nov 2003

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You usually not supposed to mix oil but i dont really think it would hurt it ....

Mar 17, 2004 | 12:07 PM

advanracing62

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Joined: May 2001

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From: Boise, ID

Re: (Curtisbeef)

you can mix full synthetic with full synthetic... I wouldn't mix anything else

Mar 17, 2004 | 12:09 PM

JimBlake

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Joined: Jan 2003

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Re: (advanracing62)

You might want to use Mobil 1 instead of SynTec. Amsoil & Mobil 1 are made from type IV feedstocks, SynTec from type III. But I don't know if it'll really make a difference.