In my class 2 power mendy 2D ive been running redline light weight 75w140 synthetic gear oil with a trans cooler
oil conditionis always good when drained ,
tryed running a lighter grade oil 80w90 but found the oil was burnt when drained
__________________
were we're goin we dont need roads.
it's not the speed of life that scares me, it's the sudden stop at the end ,