I usually give Scoots a diet of Top Tier 87 Octane Gas. (I usually get Shell because of the 10 Cent Discount though our local Grocery Chain) You Really don't see the Benefits of Higher Octane Fuel unless you are driving a car that's been Tuned to reap the Benefits, or if its a High Performance car (like a Camaro ZL1 or a Corvette) that was Designed for High Octane Fuel.