That's a damn good way to waste 10 bucks or more per gallon.
Quick octane lesson:
Octane resists ignition. The more the fuel has(the higher the number) the more the fuel resists ignition before the spark, meaning no uncontrolled combustion. All stock street engines will run at their peak on 93 octane or below. Running 93 in a vehicle meant to use 87 will neither help nor harm anything. The only time you need higher octane is when the timing or compression exceeds the limits of the fuel youve been using. Thats not gonna happen on a stock truck on a stock tune. 93 is the highest youll need to run. That's pump gas though. Race gas is a broad term that covers all kinds of fuels ranging from 96 octane to up in the 120s. But more goes into race gas than that, it's not just octane boosted pump gas. There's no ethanol in it. Most all race fuel is specialized in some way, and has a specific application. Aviation fuel contains extra oxygenation due to the lack of oxygen at high altitude. Running aviation fuels in street cars can cause problems. Running anything over a mix of VP100 and pump gas in most street cars can cause problems. Running certain fuels like C16, even mixed into pump gas, can melt down catalytic converters.
It's best to leave the race fuel for the people that need it and know how to choose and use it. You know, race cars.
