Trans Axle Oil Type Help

[Queen_Ashford]

Hi everyone,

New to the forum. I was on here a few years ago, but I kind of shelved the 944 projoect for while.

Now it's my daily driver so pushing hard to fix lots of the annoying things that the Sunday drive never picked up.

I am changing the trans-axle oil. I know how to do it and the pitfalls etc..........

However, trying to find the correct oil is doing my head in!!!!

I have an 1989, 2.7L 944, Manual with 151,000 miles on it (Obviously that could be wrong as I had to fix the mushy cog!).

I know it has to be GL4. Have seen 75W-90 being recommended (my manual says MIL-L2105).

Another worry is there are some 944s with LSD and NLSD, apparently that makes a difference? Don't know which I have!!!

The Red Line MT90 GL4 comes up alot, is that OK???

Help!!!

Rachel

[scam75]

Hi Rachel

You 99.9% won't have an LSD in your car, unless someone has done a transplant or it was specced from the factory.

Either way using a good synthetic 75/90 will do the job, LSD or no LSD. You will need about 2 litres. Always make sure you can open the fill plug before you remove the drain plug!

If your box is a bit noisy, and you want to quieten it down a bit, go for Swepco. It has a very long service life as well, it's quite thick and its blue, and benefits from being pumped in to the box rather than poured.

I have Swepco 201 in my car, with LSD. It's good for non LSD also.

Cheers

Stuart

[Queen_Ashford]

Thank you so much Stuart.

I'll get ordering.

Appreciate you answering.

Rachel

[scam75]

No worries.