Friction modifier

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Jun 5, 2011 | 11:18 AM

BLKC3

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Teching In

Joined: Sep 2009

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Friction modifier

Hi All,

I just changer the rear end fluid on my 06 Duramax with AmsOil Severe Gear SAE 75w-90 extreme presure, do I need to add friction modifier from GM?

Jun 5, 2011 | 02:12 PM

KleenHall

Launching!

Joined: Aug 2009

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From: san diego

idk about amsoil but if the label says GL-5 then is has a friction modifier in it, or find the additive

you have a locker?

Jun 5, 2011 | 02:18 PM

TIM Z

11 sec. Truck Mod

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Joined: Dec 2005

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From: OH IO :(

No, just synthetic fluid .

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