Which Transimission Fluid?

[Red '97]

just got paid im due for new transmission fluid and i wanna buy synthetic, i dont know if its specified that way from the factory or not but i was just wondering what kind everyone is using and what people like. thanks!

[jesilvas]

I have DexIII. Works great. If you wanna do synthetic fine, but you're still gonna need to flush it when it's burnt up.
Also, that's about 21qts for a proper flush. Ask me and I'll tell.
I also added an external filter in the cooler line. Just like the Dieselsite one but DIY using the same stuff they did.

[85_305]

I'm interested in this question about synthetic fluid also because thats my next step; synthetics in my whole truck

[madpogue]

Umm, which tranny?

(Makes a weeee tad bit of difference wrt. how much fluid.....)

[85_305]

E4od for me and I think the OP

[milkymoomilkmilk]

Schaeffer's makes great fluids I think they make trans fluid and dale at tymar can get it for you and asnwer questions about it.

[Red '97]

its an e40d like it says in the sig, im pretty much sold on full synthetic from what ive heard. i just dont know what to use, i was thinking maybe amsoil

[jesilvas]

BTS uses Schaeffer's in theirs FWIW.

[Red '97]

hmmm alright thanks man

[madpogue]

Originally Posted by Red '97

its an e40d like it says in the sig,

Sigs can be turned off (and given how slooooow the .org can be sometimes, it helps to turn 'em off). Brand seems to be a regional thing. AmsOil is headquartered in Superior, WI, and seems to be the favorite in the northeast and midwest. Schaeffer's seems to be more popular down south. Oil ain't cheap to ship, which probably explains the regionality. Not sure about Royal Purple. There's always Mobil 1 ATF, pretty-much the same price nationwide.