Q. What type of oil do I use in my gearbox?

A. Different oils for different applications. For an example
     for a full time 4x4 Subaru Legacy we would recommend
     using only Castrol Syntrax this oil is designed for
     ultimate gear change as well as 4x4 application, but for
     a Toyoa Celica with a limited slip differential we would
     recommend using only Castrol LST which is designed
     for these applications.
     For a vehicle with a problem gear change when the
     vehicle is cold we would recommend a synthetic oil like
     Castrol VMX as long as the vehicle does not have a
     Hypoid gear setup.

We use and recommend only the best oils