This will open up a can of worms but I will start with this quote.
"Ignorance can be fixed with education. However stupidity takes great salesmanship." Many people are handed opinions and not facts.
So here goes.
The highest British Thermal "Unit of burn is regular.
The least is high octane.
Octane requirements are determined on the compression needs of a engine design. High compression = high octane, low compression = low octane.
So run what the owners manual recommends and that's that. Run the wrong octane and risk poor mileage, carbon build up and performance loss.
Now lets get into ethanol and phase seperation of fuel.
A product from Amsoil called Amsoil PI is wonderful and for storage and performance research K100 fuel treatment. I have hours of testing previous mentioned products. K100 and AMSOIL outperform.
Now we should not need to use adative for gas but in reality current gas and ethanol have created nightmares for carb equipped vehicles.
www.lubedealer.com/carguys
As a 35 year Automotive instructor , Radio Talk show host and Clean Cities advisor when we move here next year there will not be a gas cart in our garage.
One gas engine Yamaha emits more raw Hydro Carbons( raw fuel ) and Carbon Monoxide ( partly burnt fuels) in a tunnel or your garage than 75 emission controlled fuel injected vehicles running at 65 for hours. My lawn mower left running in a closed garage could kill me in a hour. Our 2011 GM or Toyota as most other vehicles would emitt cleaner air than inhaled in the intake.
Now if we get fuel injection and a cat muffler system on a Gas Cart I would buy it. Why don't we have this technology? Cost! People like to save money as they gasp for breath.
Geee is it the grass and pollen that makes us wheeze or the ground level lung searing Ozone from lawn mowers and Gas Cart exhaust? And no I'm not some tree hugger just like to breath fresh air.
Electric carts with regenerative braking will soon take over the hearts of many. Price and performance will come down.
Just some thoughts no disrespect to current gas cart owners or sales. One year to go and we will be here with all you great Villagers! Can't wait.