LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

ok to mix up 5w30 and 10w30?

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Old

Jan 7, 2004 | 10:47 AM

#1

Seal

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Joined: Nov 2002

Posts: 1,072

ok to mix up 5w30 and 10w30?

I just noticed i got 3 10w30 and 2 5w30... and now that the oil is drained out i have no way of getting it changed

is it ok to mix that up? wouldnt hurt right? it'll be like 8w30 now i guess :P

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Old

Jan 7, 2004 | 10:54 AM

#2

Tom R.

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Joined: Oct 2003

Posts: 196

From: L.I., N.Y.

you just mixed yourself an 8w30 cocktail. enjoy. you can mix weights, mix dino and synthetic, etc without worry.

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Old

Jan 7, 2004 | 12:26 PM

#3

Patman

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Joined: Sep 1998

Posts: 679

From: Oakville, Ontario

You'll be fine to mix it. You just won't have quite as good of a cold cranking performance from it as you would with 100% 5w30, that's all.

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Old

Jan 7, 2004 | 12:29 PM

#4

neil350

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Joined: Apr 2000

Posts: 2,670

From: T E X A S

Oh no you'll spin every bearing in the motor, oh wait thats only after cam swaps.

j/k

Should be fine.

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Old

Jan 7, 2004 | 02:12 PM

#5

IslandZ

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Joined: Sep 2001

Posts: 308

From: Curacao (Caribbean Island)

I actually do it just like that on purpose. It doesnt get cold here and I dont want all 10-30 so I mix them. Car has been fine!

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