Hi all I need to change the oil in my R380 I have 4 litres of VMX80 I was going to use this with some Nulon G70 friction modifier. I also have 2.5 litres of GL4 Nulon smooth shift full synthetic I would use the G70 in both oils so my question is which one would be best gear oils aren't my strong point so any help would be great .
Thanks Phil