DeTomaso Mailing List: October 99, Message #57

In a message dated 9/25/99 9:54:10 AM, moseleya@pacbell.net writes:
snip.....
<< ...But most importantly, Shell produced a special trans oil specifically 
for the ZF, SHELL SL-793.  In the early 70', apparently this was the only 
warranty approved
lube for the ZF.....  >>

Correct- one 4-speed version was also used in a type of pavement-roller (the 
so-called 'Fendt Roller'). Also used in the small-block GT-40s and the 
Mangusta as well as about every mid-engined sporty car ever built in Europe. 
In the back of the ZF shop manual, there's a whole list of gear oils 
approved, and some were only available in bulk from Porsche or Jaguar 
dealers. Now, 29 years later, most any 75W90 for posi-type diffs works just 
fine. 100% synthetics? Dunno- the jury's still out on that. Cheers- J DeRyke