Does anyone know of where to acquire manual transmission fluid and differential gear oil. Pep boys, sears, nor kregan sold the right type and Mercedes wanted 45$ for transmission fluid.

Just use off-the-shelf Dextron/Mercron ATF in the tranny. RedLine MTL is about the best fluid you can use but do NOT use 90weight gear oil.

I prefer Valvoline Full Synthetic Gear Oil for the diff. LINK

what is the proper weight gear oil for the rear dif? i've been wondering this since i'm due to change the fluid in the rear. i know open the fill plug first. but questioning the weight has been my main concern thanks to anyone who answers this.
-Steven

__________________
1982 300D Turbo 203K silver
Need to fix these leaks badly

sae 90 hypoid gear oil. It should be changed accourding to the book every 30,000 miles. I figured mine hasent been changed ever so i should probally do it.

I ordered from MB web site, a 1981 owner's manual.

for a manual transmission the capacity is 2.7 US pt, or 1.3 l
they recommend Engine Oil SAE 10W/20 or W-20

for the automatic - 5 US qt ATF Automatic Transmission.

But, I have seen other threads and others also say to use ATF in a manual transmission. Not sure what I will do when it comes time to change mine. I had the shop ( none MB, but works specialists on MB) to change the transmission and rear end for me. Normally I change my own, but just getting old and lazy.

The rear end, according to the book, 2.1 US pt and hypoid gear oil SAE 90, or 85W/90

Bob
1981 MB 240d just purchased end of April, 174,000 miles
1984 Iszuz P'up Diesel 502,000 miles (purchased new)

As I was reading the thread here at the bottom of the page appears an "ad" for Redline Products, and being a proponent for their excellent MLT and oils (although I do buy Amsoil now in 2.5 gal containers) I clicked on it.
http://www.247-parts.com/view_cat_sub.html?cat_l1=2&cat_l2=4
Not a bad price, $9.15. You need 2 bottles of it for a manual trans.
Also a thread on the subject:
http://www.peachparts.com/shopforum/showthread.php?t=140598&highlight=mtl

__________________
'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!

Is sae 80w 90 ok for rear diff? Its valveoline fully synthetic. Also, running automatic trasmission fluid in a manual is alright?