Which Gear/Diff oil is best for me?

[iiNNeX]

Hey all,

Looking to change all the fluids on the car and have come to gearbox and diff oil selection. Normally I would just go for Castrol's latest variations but thought I'd ask what the consensus is on here first. From my research, the car needs 75w90 oil that meets BMW spec MTF-LT-2.

Does that mean the gearbox and diff oil would be the same? (since I don't have a LSD)

I can see Castrol selling 2 types:
1. Castrol TRANSMAX Axle Long Life 75W-90 - which appears to be marketed as Axle Oil
2. Castrol TRANSMAX Manual Multivehicle 75W-90 - which I presume is for the manual box

There is also Red Line to consider, I've heard nothing but high praise for their products and they have this for sale: https://www.ebay.co.uk/itm/283038188495?hash=item41e66403cf:g:jQgAAOSw3jtbO2c0

Any input is highly appreciated, just want to make sure I buy the best quality products that I can, seeing as there's not much in it price wise.

Thanks!

 

[oilman]

Hi,

You are correct on the diff oil, the Castrol Axle Longlife 75w-90 will be ideal if you do not have an LSD.

The gearbox, MTF-LT-2 is a 75w-80 meeting API GL4 so not the same oil as a diff. If you wanted to try Redline you would be looking at the Redline MTL for the gearbox.

Cheers,

Guy

 

[patriot66]

I changed mine back in April 2017. I like Castrol products so used Castrol Syntrans B75W (API GL-4, ZF TE-ML 11) in the gearbox and Syntrax Long Life 75W-90 (API GL-5, ZF TE-ML 05A,12B,17B,19C,21A, BMW Non LS Rear Axles) in the diff. No issues, no regrets. Would highly recommend both

 

[iiNNeX]

Hi,

You are correct on the diff oil, the Castrol Axle Longlife 75w-90 will be ideal if you do not have an LSD.

The gearbox, MTF-LT-2 is a 75w-80 meeting API GL4 so not the same oil as a diff. If you wanted to try Redline you would be looking at the Redline MTL for the gearbox.

Cheers,

Guy

I changed mine back in April 2017. I like Castrol products so used Castrol Syntrans B75W (API GL-4, ZF TE-ML 11) in the gearbox and Syntrax Long Life 75W-90 (API GL-5, ZF TE-ML 05A,12B,17B,19C,21A, BMW Non LS Rear Axles) in the diff. No issues, no regrets. Would highly recommend both

You two are awesome, thank you. I will get ordering!