Premium gas is also known as “high-octane” gas. The higher amount of octane is beneficial especially if you:
Premium gas also contains a higher percentage of detergent additive than what is required by the EPA. Automakers such as Audi, BMW, General Motors, Honda, Toyota, and Volkswagen claim that the detergent additive improves the vehicle’s responsiveness and performance, while decreasing emissions.
Probably the number one reason to use regular gas is that it’s 15 to 30 cents cheaper per gallon than premium gas. Even if premium is recommended for your vehicle, you can, in most cases, use regular gas and not experience any loss in performance. If you notice that the engine is knocking when you use regular gas, go back to the premium. Vehicles that have a higher compression ratio will perform better with premium gas.
The octane rating indicates how much the fuel-air mixture can be compressed before igniting spontaneously. When the fuel-air mixture ignites from compression rather than the electric charge from the spark plug, it causes the engine to knock and lose power.
Regular gas usually has an octane rating of 87, meaning that it will ignite with the least amount of compression. Premium gas has an octane rating of 91 to 93. A high-performance engine with a higher compression ratio will require premium gas in order to deliver maximum power.
Still wondering what type of gasoline you should be using in your car, truck, or SUV? The certified technicians at your local Sam Leman Automotive Group service center can help you determine what’s the best fuel for your vehicle. We offer the full menu of auto care services, from oil changes and tire rotations, to brake service and transmission repair. We can even help you perform necessary car care tasks, like regular car washes, at home!
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