[mattwithcats]

Opinions on replacing transmission fluid with Mobil 1 Delvac 50?

It’s GL-4, around 90 weight gear oil...

https://www.mobil.com/en/mobil-delv...n-fluids/mobil-delvac-1-transmission-fluid-50

 

[jwight]

FWIW, I had the fluid changed on our 2011 last year. Went with Royal Purple just to see if it made a difference. It didn't.

 

[jzchen]

Saw SAE 90 for gear oil...

But this shows the spec as “GLS”?

http://www.carquestprofessionals.co...nsmission Fluid Application Guide 6.6.13.pdf

Found a company in Canada BLU Canada Limited that produces a MTF-FS 75W-90 with a nicely stated warranty.....

 

[mattwithcats]

On order...

Will run a VOA of the Delvac, and a UOA of the old transmission fluid...

Viscosity is around 130, while regular GL-4 gear oil is 75-100...

Delvac 50
Viscosity 40C 132 Cst
100C 17.5

Bot 328
40C 76
100C 15.09

Redline
40C 86.2
100C 15.6

 

[Wizard of Ahs]

I used redline MT90 on both of my changes.....150,000+ and still runs like new

 

[heraldhamster]

I used redline MT90 on both of my changes.....150,000+ and still runs like new

I've used that in several other rides (Wranglers) and always had good luck in transmission and the diffs.