B byez Joined Oct 21, 2007 Messages 434 Location Canada,North America,Western Hemisphere,Earth,Milk May 30, 2009 #1 My 08 Tundra calls for either GL4 or GL5. Which one is better suited to the job? The front & rear diff call for GL5 specifically.
My 08 Tundra calls for either GL4 or GL5. Which one is better suited to the job? The front & rear diff call for GL5 specifically.
G Gary Allan Joined Sep 28, 2002 Messages 39,799 May 30, 2009 #2 I'd say it depends on how many fluids you want to carry. Amsoil's site confirms that both are spec'd for the t-case.
I'd say it depends on how many fluids you want to carry. Amsoil's site confirms that both are spec'd for the t-case.
Shannow Joined Dec 12, 2002 Messages 43,887 Location 'Stralia May 30, 2009 #3 Transfer cases it don't matter. They oft spec ATF in them, when they are the same as the manual tranny. If your gearbox is GL4, then use that.
Transfer cases it don't matter. They oft spec ATF in them, when they are the same as the manual tranny. If your gearbox is GL4, then use that.
U unDummy Joined Feb 1, 2003 Messages 8,755 Location RI May 30, 2009 #4 I would use a GL5. In rarely maintained transfer cases, any added protection will help. I've seen too many gear, bearing, bushing, chain... failures in transfer cases. Use the best fluid always.
I would use a GL5. In rarely maintained transfer cases, any added protection will help. I've seen too many gear, bearing, bushing, chain... failures in transfer cases. Use the best fluid always.
M mechtech2 Joined Sep 5, 2006 Messages 19,478 Location Chicago Area May 30, 2009 #5 Using the GL5 sounds good there.