hi guys, acouple of questions on gearbox oil & rear diff oil which is the best grade to use??? also do i check it when the motors been warmed up or cold??? its 51reg bugeye wrx.......................
cheers steve

 

Millers CRX 75w 90nt. Will do both gearbox and rear diff. Checking should be done on level ground and when the oil is cold.

 

cheers m8..............ill b on that tomorrow