Manual Trans Oil

I was wondering if anyone knew what type of oil a 1983 240D stick shift trans takes. Does Mercedes have a particular type of oil that they want used like their coolant? Or can I just use any type of higher quality manual trans oil?

Forums

Diesel Engine Specific Aid

Taxonomy upgrade extras

Questions and Answers

Chassis Model Number

W123

manual transmission lubrication

Mfr. recommends ATF, automatic transmission fluid Mine began to grind occasionally going into 2nd gear. I replaced the ATF with synthetic gear oil, SAE 80/90 and molybdemum paste, that corrected the problem, mostly. Dont be shy.

Manual Trans Lube

I've had great luck with synthetic Red Line MTL (Manual Transmission Lubricant). It's been in 2 years and really helped balky 2nd gear synchro. Shifts like butter. It was specifically designed for tranmissions originally calling for ATF. Read their spec sheet @ www.redlineoil.com; very informative. I'm in no way connected to the company. Not cheap lube but easy to find online. 80/90 gear oil contains reactive sulfur that can shorten synchro life by 50%. Also viscosity way high. Read spec. sheet for more gear oil negatives.