Quote Originally Posted by gavcan01 View Post
I'll start rounding up some oils and go from there.
If you haven't changed all the oils in one hit previously the cost of the oils is a real eye opener, or at least it was for me! Not a cheap exercise. Getting the oils into the diffs, gearbox & transfer case is much easier if you use the easier flowing synthetics. Make sure you use the specified GL rating. In mine (TD42i) it is GL4 is specified. First time I changed the gearbox oil I thought a later GL5 oil would be ok if not better. Wrong. It isn't. When I finally woke up & replaced it with GL4 oil it made a significant improvement to gear changing when the motor was cold.