I've been using Lucas in my truck and trike (GM 350 V8 with TPI) for years, keeps injectors clean, improves gas mileage running 87 octane. In my bikes, I run 93 octane gas, no ethanol when I can find it. So I don't consider using Lucas in the bikes. But I don't see any reason not to, it's a great product and works as expected. I've asked several mechanics of the years on continual use of Lucas and they all recommend it for keeping fuel systems clean. I buy it by the gallon and refill the singe use bottles. Cuts cost by 2/3'ds.