gearbox and axle oil?
Posted: Mon May 23, 2022 8:57 am
do In I need to stay off GL5 spec oil and use GL4 as with other old cars I have (older!) due to the issues with bearings/bushes??
Gearbox GL4 or GL5 SAE 90w or 80w90
Axle GL5 above 18C SAE 90w or below 18C 80w
I use redline 75w90 GL5 in the axle and redline MT90 75w90 GL4 in the box.
If you have a stock clutch type LSD you need LSD gear oil, or use an additive for LSDs.