We are getting ready to place a limited-slip differential (LSD) from a 190E 2.3-16v EURO into our W124 wagon with the C36 engine (270HP; 276 torque) and I was wondering which gear lube weight to use 80W/90 or 80W/140 (SWEPCO 201 with LSD modifiers)?
I have heard that in differentials that get hard abuse and without an external cooler or cooling-fins like the 400E/500E, one may want a wider range lube.
Opinions? Insight? Caveats?
1988 360TE AMG