How do you make octaine boster?

To make an octane booster, you can use substances like toluene or xylene, which are commonly found in paint thinners and can improve fuel octane ratings. Another option is to mix small amounts of ethanol or isopropyl alcohol with your gasoline, as they can also enhance octane levels. It's important to note that using homemade octane boosters can be risky and may damage your engine or void warranties, so it's best to use commercially available products designed for this purpose. Always consult your vehicle's manual before modifying fuel.