80/90w gear oil
dexron 3 or 4
It is important to know the types of fluids that go into different cars. A Land Rover Discovery takes Dexron III automatic transmission fluid.
Dextron III ATF
The 2001 Land-Rover Range-Rover has overhead valves (OHV).
The 2002 Land-Rover Range-Rover has overhead valves (OHV).
The automatic and manual gearboxes in series 1 and 2 Discovery both use dextron 3. Discovery TD5 uses MTF94 fluid and can only get it from Land Rover dealers or specialists. I believe there is not a compatible alternative.
The 2008 Land-Rover Range-Rover has double overhead cam (DOHC).
The 2003 Land-Rover Range-Rover has double overhead cam (DOHC).
The 2013 Land-Rover Range-Rover has double overhead cam (DOHC).
The 2005 Land-Rover Range-Rover has double overhead cam (DOHC).
The 2012 Land-Rover Range-Rover has double overhead cam (DOHC).
The 2007 Land-Rover Range-Rover has double overhead cam (DOHC).