Tranny Fluid? GL-4 / GL-5 WTF!!

[Probe Dude]

GL4 does exist.  GL5 is not a substitute for GL4.
Some additives in GL5 can actually be harmful/corrosive to transmissions
with 'yellow' metals in them (brass/bronze).

Fluid that states specifically "GL4/GL5" should be okay, but I wouldn't
trust something that only says GL5.

I used to get GL4 in those translucent quart bottles made by STALUB (?) and
also in the blue tall quart bottles by Valvoline.  Be sure to buy the bottle
pump while you're there.

Dave

>In another note, I found an old receipt from Jiffy Lube where I went to
>have
>my tranny fluid changed back in 1998 and the receipt said "drain, and
>refill
>with GL-5 gear oil"  GL-5!!! Does GL-4 still exist, aside from the