Gearbox Oil - Redline MTL or MT90 or a miture of both?

[mr_andersen]

Hi all,

I just purchased a '96 FTO GPX and it's in need of a gearbox oil change.

I've done a fair bit of reading and decided to go with Redline but I'm unsure whether to use MT90 or a mixture of MTL and MT90. I live over in Perth so it's fairly hot so I'm leaning towards just straight MT90.

What do you guys think?

Thanks.

[evoman]

Good question mate! Answer is I don't think anyone really knows.

I hate oils.

I believe the official word from Redline is a mixture of MTL and MT90 as you suggested, however I don't know anyone that has done so. Bennoz reckons that MT90 is alright as it is a GL4 oil which doesn't have the potentially harmful additives of some of the GL5 oils such as the Redline shockproof range have. Having said that I think some people have used Shockproof on here before without any issues.

So I would say if you want to stick with the good stuff, do what Redline says and mix the two and see how you go.

[Shane001]

Important question to ask first is whether you have LSD or not.

If yes go with Motul FF-LSD.

[mr_andersen]

Important question to ask first is whether you have LSD or not.

I ran the VIN through the Mitsubishi ASA program I downloaded and one of the parts available is a limited slip so maybe it does have a LSD (I haven't actually picked the car up yet so I can't physically check).

I might have to wait until I know for sure whether it has a LSD or not. For some reason I just assumed it didn't. Thanks Shane for mentioning that otherwise I probably would have wasted $100 on the wrong oil.