2002 Trans Am

Which one for a 4L60E

Can't believe I can't find it in the FAQ and search is down

joecar

Dexron III.

2002 Trans Am

Thanks

tptransmission

Dex VI will work also.

crmartin99

iTrader: (3)

and dex vi is twice as good... ok, bad joke.

the_merv

iTrader: (88)

IV is four.

9000th01ss

iTrader: (10)

I don't think they made a Dexron 4. They went from 3 to 6.

the_merv

iTrader: (88)

I thought it was Dexron 4, never heard of 6, seriously..lol

9000th01ss

iTrader: (10)

Dexron for some reason went from III to VI
There is also an ATF+4 but it's not Dexron.

I forgot the reason for no IV

the_merv

iTrader: (88)

That's what I'm thinking of probably, the +4 stuff.

TXZ28LS1

iTrader: (5)

i just stick with DEX III

Chrome355z

iTrader: (1)

This will go in my next trans oil drop (or may wait till I toast the stock tranny and get a built one). It's costly though.

Allison Transmission TranSynd
http://www.allisontransmission.com/c...Aug2001/88.jsp

9000th01ss

iTrader: (10)

Heres the 2009 version.

tptransmission

Allison is now using Dex VI. Dexron VI was development specifically for the GM 6 speed.

Chrome355z

iTrader: (1)

Be careful there, only the Allison 1000 series was designed in a codeal with GM Powertrain so they ended up having to use GMs specs for oil and shipped with DexVI iirc. GM can mfg and call it an Allison as long as they don't make a design change.

Allison Transmission uses TranSynd in the Medium/Heavy Duty Transmissions that they manufacture to this day. DexVI would VOID the warranty on these transmissions, and circa I believe 2006 it would cause physical problems due to seal compatibility issues.

I'll be at Allison in the next month or two to talk to their oil guy, i'll se what more info I can find out!!!

tptransmission

TranSynd is a better fluid if you want to pay for it. I was Just pointing out that some Allisons did go to Dex 6.