RE: (ET) E-20 Transmission Oil Recommendations

["Chris Tromley" <chris_t microtrac com>]

John Casey wrote:

> Like you I live in a snow zone.  A few years ago Bill told me 
> to use 85-140 gear oil.  I did and it ran fine.  Lots of guys 
> on this list use synthetic oil and thought I'd try it.  I 
> have no doubts about Mobil 75-90 synthetic as a lubricant but 
> think my trans a bit noisier than with the heavier gear oil.

Hi Jack,

This is the first mention I've seen regarding synthetic transmission oil in
ETs.  I talked to Mobil some time back about using it in an older car.  
They
told me that seal compatibility can be an issue.  Around 1980 the seal
manufacturers changed their materials to be more compatible with 
synthetics.

That casts some doubt on using it in an ET.  Can anyone here specifically
say they tried it and it works fine?  No leaks?  I can see getting a little
more noise when using a lighter oil, but leaks are a different issue.  I'd
really rather not have to replace seals.

BTW, Sta-Lube makes a handy little plunger pump that screws into the jug of
oil and pumps it through a hose into the trans.  You should be able to find
them at Pep Boys, Auto Zone, etc.

Chris Tromley
near Philadelphia  PA  USA

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