Should You Use Premium Gas?

Marcus Vance
Marcus Vance
• • 7 min read

If Your Car Requires Premium Gas: Then You Need Premium Gas. Your Car Has a High Compression Ratio And, Moving to a Lower Grade Will Likely Cause Knocking...

Should You Use Premium Gas?
If your car requires premium gas: Then you need premium gas. Your car has a high compression ratio and, moving to a lower grade will likely cause knocking, which you really don't want. Now, many cars can adjust the engine's timing to prevent knock, thus allowing you to use lower octane gasoline if you so choose.

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Similarly, is it better to use premium gas?

It may seem like buying higher octane “premium” gas is like giving your car a treat, or boosting its performance. In fact, in most cases, using a higher octane gasoline than your owner's manual recommends offers absolutely no benefit. It won't make your car perform better, go faster, get better mileage, or run cleaner.

Also, does premium gas improve performance? If your car only recommends premium, the choice is yours. Research by AAA found that these vehicles saw a slight increase in performance and fuel economy using premium gas. For those who drive a luxury or performance vehicle, premium gas can help emphasize your vehicle's intended characteristics.

Consequently, is it OK to put premium gas in a regular car?

Using premium gas in a regular car will cost you more with almost no added benefits. The Federal Trade Commission says that using a high-octane gasoline rather than a recommended one will offer almost no benefits. It will not make your engine perform better or faster.

What happens if you mix premium and regular gas?

If your engine runs fine on regular, filling it with premium is unlikely to boost acceleration or fuel economy by more than insignificant amounts. The higher octane of premium gas won't make your car faster; in fact, the opposite is possible because higher-octane fuel technically has less energy than lower-octane fuel.

Related Question Answers

Is Shell V power the same as premium?

The big fuel companies love the idea of us using their premium, high-octane fuels. "Shell V-Power is actually 99 per cent the same as the fuel compounds used by the Ferrari F1 team," explained Dr Cantlay. The fuels are so close now you could get an F1 car to run on V-Power, or use F1 fuel in a street car.

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What happens if you don't use premium gas?

That is most likely to happen if using regular causes severe engine knock or pinging (premature ignition of the fuel, also known as detonation) that damages the pistons or other engine parts. If the octane rating is less than 91, you could damage the engine and may void your vehicle warranty.
Marcus Vance

Marcus Vance

Cybersecurity & Digital Privacy Researcher
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Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.