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T5 gearbox oil
r1_pete - 21/6/20 at 12:26 PM

I've a fully rebuilt Tremec (BW) T5 gearbox ready to go into my car.

It seems Dextron 2 ATF is the recommended Oil, I'm just wondering if there is anything better? Its a late 80s design and oil tech has moved on in that time.

Cheers.


britishtrident - 21/6/20 at 01:31 PM

I would use MTF-94 --- it was developed for Land-Rover and Rover and used for Honda it solved a a lot of issues Land-Rover were having on Defender and Range Rover 5 speed manual boxes replacing the Dexron 2 theys had used as an interim solution.


mcerd1 - 22/6/20 at 03:11 PM

Tremec themselves still say Dexron II

https://www.tremec.com/anexos/TRSM-T5-0510-R1_173.pdf

quote:
APPROVED LUBRICANT.
Most T5 transmission models use Dexron II automatic transmission fluid.
Refer the vehicle owner’s manual or service manual for lubricant specifications.




----
quote:
Originally posted by britishtrident
I would use MTF-94 --- it was developed for Land-Rover and Rover and used for Honda it solved a a lot of issues Land-Rover were having on Defender and Range Rover 5 speed manual boxes replacing the Dexron 2 theys had used as an interim solution.
but the T5 is a bit different from the LT77 / R380 boxes, I've alway seen Dexron II as the recommendation for T5's in cossie's or in TVR's

[Edited on 22/6/2020 by mcerd1]