VXNIT....this is Wayne,Chopper up in Palm Coast. Mobil 1 for sure. Something heavier than 5/30 or 50 for sure. We're on day 50 or 51 of better than 90 degree days. No need for 5 weight lube---'specially in a "clicky" engine. Plain ol' 30 weight is fine. 75/140 when you do the diffs. Get ahold of me any day at Flagler Collision 446-0224 I'll help ya with just about anything.