Would Redline 80w140 be too thick for my 1988 318i Auto?

[anxious]

Would Redline 80w140 be too thick for my 1988 318i Auto?

[bimmerphile]

I take you're in europe.


Yes, I think that 80w140 would probably be too think for your little four-banger, but then again, there has to be a reason why you want that viscosity. You live in a hot climate?

[franz]

in the engine, yes

trans, yes

differential?








yes

[fabianyee]

I think he meant to used it in the differential...

He's been complaining about the slight freeplay in the rear diff...

[anxious]

Thanks Fabian

Yes I was thinking of the using it as an alternative to 75w90 gear oil for the differential.

Redlines website says:-

80W140

Generally used in commercial trucks which will climb long, steep grades and some racing applications where power is not critical. Generally 0.5% less efficient than 75W90. Can also be used in differentials and transmissions where excessive noise is a problem and limited-slip differentials which vibrate excessively when turning a corner. Exceeds API GL-5.

I was wondering whether it would quieten my diff backlash?

[M3 Ryan]

my diff is a bit noisey and annoying too... I can hear the drive side of the teeth whine on the freeway and its starting to piss me off... I will try this stuff before I go swapping out my diff for a lower mileage one...