Changing Trans and Diff fluid

[grijo]

Planning to change the manual transmission and differencial oils on my 88 M5. Trying to find out if the filler and drain plugs use washers. Want to make sure I have all the parts before I begin the process.

Thanks,
Guido

[m20power]

Guido,

The trans plugs are tapered. like NPT, and do not use washers. The diff plugs do and these are availble at the dealer for pennies.

I'm sure I don't need to remind you to always remove the fill plug first, just in case you can't.

HTH

Bob

[grijo]

Bob,

Thanks for the reply. I'll stop by the dealer tomorrow to get the washers.

I am planning to use Redline fluids on the transmission and differential. Called Redline to inquire about the correct oil to use. Here is their recommendation:
1) For the differential: 75W90
2) For the transmission: Green label use MT-90. Red label use D4-ATF. No label use MTL.

Looked under my 88 M5 on the driver and passenger side and could not find a label. On the passenger side I can see the GETRAG name, but no label. On the driver side I can see VIN number on a black label.

Could it be that the label felt off?

Thanks,
Guido