Diff oil.Is this grade correct?

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striker600

Active Member
Joined
Nov 13, 2007
Messages
112
Location
south yorkshire
Car
2001 c270 cdi avantgarde estate Auto w203
Asked my local mb dealer in sheffield what is the correct oil for my diff & he said they use75w/90 sythetic based oil.He couldnt sell me any as he said "we only have a large barrel in the workshop"! My car is a 2001 270 cdi.is it ok to use this grade of oil?
 
As long as it meets MB 235.7 spec it's OK. However, the MB oil is special for hypoid gears and the viscosity is 85W90. I changed mine some time back and several people told me to stick to this oil (or the newer fuel saver 75W85 that is much more expensive) to avoid risking the health of the diff.
 
Is anyone clued up on friction modifiers and gearbox / diff oil?
 

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