Interesting comments on Nulon and Synchro boxes,i have been running Nulon in the gearbox of my old Volvo 164 and it has been a dog to change ever since.
Just finished putting Penrite 75W90 in my D2 diff's and transfer case.
HPR5 in the TD5 and about to use the Penrite Fully Synthetic in the Auto.
Did use the Nulon Red coolant in the radiator thou.
PeterN

