t5 trans fluid

one2gamble

Founding Member

Feb 27, 2001

902

1

0

Monterey

Jul 18, 2004

#1

• Jul 18, 2004

• #1

what kind of fluid does the t5 take and what are some recomendations of brands etc?

 

R

Ronstang

New Member

Apr 4, 2004

1,294

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Houston Texas

Jul 18, 2004

#2

• Jul 18, 2004

• #2

As far as I know it uses automatic transmission fluid and the latest Mercon level should be fine. Some transmissions like the Tremec (at least the first gen ones) use a special fluid that is rather expensive and available at the Chevy dealer.

 

G

geegee

Founding Member

Oct 21, 2000

2,015

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near Oklahoma City, OK

Jul 19, 2004

#3

• Jul 19, 2004

• #3

one2gamble said:

what kind of fluid does the t5 take and what are some recomendations of brands etc?

Click to expand...

Uses Dextron/Mercon fluids. Any name brand is okay but always top off with the same brand you select for the first fill. Elsewise drain and refill. You need this fine runny stuff so it penetrates very small orifices drilled in the tranny gears. You also need good seals and a yoke in good condition (no grooves) to keep this stuff off your driveway. Never use gear oil as it won't lubricate this tranny.

 

Glen's 1965 5.0

Founding Member

Feb 5, 2001

477

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Tomball,Texas

Jul 19, 2004

#4

• Jul 19, 2004

• #4

Fluid

The expensive stuff Ronstang is speaking about is GM syncromesh. It is good stuff. The Mercon II or equivalent fluid will work. It takes 2 ½ quarts.

Other synthetic fluids that I have used is Redline and Mobile One Synthetic ATF.

I have only used the synthetic fluids on T5 that I have rebuilt with the new upgraded syncros. I don’t know how it would work with the older style syncros that were paper lined.

 

BobV

20+ Year Stangneter

May 18, 2003

474

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16

Leavenworth, KS

Jul 19, 2004

#5

• Jul 19, 2004

• #5

Also, it depends on which T5 you have!!!

The early (non-WC / 83-84) T5's take regular 90W...