Why there are different grades of Gas and the differences.
In: Chemistry
The octane numbers you see at the pump relate to how much heat it takes to ignite the fuel in the engine. The higher the number the hotter it can withstand before it ignites. Why is this important? Most economy commuter cars, (think camry, accord, Taurus, etc) are designed for regular and that’s all they should ever need. But if you look at sports cars, especially turbocharged cars (WRX, stealth, Amg’s, etc) their engines create more power. That extra power causes the engine to run hotter so a gas that ignites at a lower temperature can cause it to ignite before it’s supposed to.
The additives and cleaners in gas are the same across the octane ratings in the same brand. So if your car takes regular, then just use regular. Theres no benefit to run a higher octane than what your car is calling for.
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