TheSamba.com :: View topic - Is Synchromesh Gear Oil equal to GL-4?

Sat Nov 17, 2007 8:29 am

I haven't found GL4 oil yet, but I did find some bottles that were labeled "Synchromesh Gear Oil". There was no GL5 or GL anything label anywhere on the bottle (made by penzoil or some such large company), but the text indicated it was good for boxes that used brass, copper, and "yellow metals". That sounds vaguely correct.... is it for sure, or shall I keep searching until I see the GL4 on the label?

Sat Nov 17, 2007 8:45 am

Personally, I'd wait until you find the Sta Lube GL-4 or order some of the rediline or amsoil on line. It would scare me to put anything in there that could make my synchros wear out.

Sat Nov 17, 2007 9:27 am

THis is the stuff....

Product Description
Buy it by the case and save. Search PEN-3501-C for case pricing. PENNZOIL SYNCHROMESH FLUID is a synchromesh transmission fluid designed for certain manual transaxles and manual transmissions used by General Motors or Chrysler. PENNZOIL SYNCHROMESH FLUID is formulated with high quality paraffinic base stocks a fluidity modifier multifunctional performance additives corrosion inhibitors a foam suppressor and a shear stable viscosity index improver additive. It provides excellent oxidation stability low temperature performance excellent synchronizer performance and compatibility with yellow metals such as bronze brass and copper components found in manual transaxles and transmissions. This product will satisfactorily lubricate General Motors or Chrysler manual transaxles and transmissions from -40C to +150C. BENEFITS - Exhibits excellent low temperature performance - Meets GM Specification 9985648 - Suitable for use in GM manual transaxles and transmissions requiring GM Part No. 12345349 or 12345577 - Meets Chrysler specification MS-9224 - Suitable for use in Chrylser transaxles and transmissions requiring Part No. 4874464 - Excellent synchronizer performance - Excellent yellow metal compatibility

Sat Nov 17, 2007 9:33 am

There was just a topic about this:
http://www.thesamba.com/vw/forum/viewtopic.php?t=130623

Sat Nov 17, 2007 9:44 am

They have it at NAPA store by the pint, quart and gallon.

Sat Nov 17, 2007 5:00 pm

Right... went down to NAPA, and they had loads of the stuff, GL-4 Stalube, just like y'all said! :D