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Old 09-11-2002, 03:09 PM
bobirving bobirving is offline
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Join Date: Apr 2002
Location: Charlotte, NC
Posts: 25
Replacing Oil in the Rear Axle (Differential)

I have a 1991 420 SEL and want to replace the original factory differential oil.. I know what is specified for the car (Owner's Manual) but I have some fresh 85W140 Heavy Duty Hypoid gear oil (generic brand, not Mercedes). SHould I use it or get the stuff from the dealership???

Thanks in advance for any replies or suggestions....

Bob Irving
Charlotte, NC
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