I like the Redline MTL. It is an 80-90 full synthetic and unlike the old gear oil has an additive for the syncros.
You see gear oil is just that and made for differentials. The ZF is a trans axle.
A full synthetic gear oil would be too slippery for the syncros to work right.
The MTL fixes that problem. Gary Hall recommended this stuff to me 15 years ago and I like everyone else, was stubborn as Hell.
Gary was right. The stuff works.
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.