Questions & Answers for: kawasaki VN 800 Vulcan Classic octane 2 0 1

...run 90 or 93 if under a heavy load or in extremally hot weather, but the owners manual says 87/90 octane is fine and up to 15% ethanol and 5% methanol, so you will be fine on regular pump

...end overhaul. In extremely rare cases some higher compression engines will ping using the highest octane graded unleaded fuel available in these cases the use of a lead additive or aviation fuel is ...