Will high octane gas hurt my car?



The higher octane gives premium gas greater resistance to early fuel ignition, which can result in potential damage, sometimes accompanied by audible engine knocking or pinging.

Is it OK to put premium gas in a regular car?

Typically, “regular” gas is 87 octane, while anything over 91 octane is considered “premium” gasoline. A spokesperson with the American Automobile Association told FOX Business that it is safe to use premium fuel in your vehicle even if it takes regular.

Can you put high octane fuel in any car?

Let’s start with the easy one. Most cars on the road recommend a standard grade 87 or 89. Premium gas 90-93 is completely okay to put in a standard vehicle. Car experts say there is no risk of damage to a standard car using premium fuel.

What happens if you put 93 gas instead of 87?





In most cases, the vehicle will run fine, but you may experience less power and a decrease in gas mileage. In more serious cases, you may hear engine knocking or valve chatter because the fuel isn’t burning right. These things could damage your engine and you should take it to your mechanic.

Will premium gas clean my engine?

No, premium gas isn’t a secret sauce for cleaning your engine. The main concern in engine maintenance is carbon build-up, which can happen over time with all fuel types if you skip routine checks. The good news is that both regular and premium gas have detergents that can reduce carbon deposits to an extent.

Does higher octane gas give better mileage?

So is Higher Octane Fuel More Efficient? In a word, no. On its own paying for premium gasoline does not make your car run better or get greater gas mileage. Giving your car the fuel it requires to run smoothly and efficiently, without damage to the engine, does make a difference in your fuel mileage.

What happens if you mix premium and regular gas?

Can I mix premium and unleaded gas? Yes, drivers can mix the two types of fuel. The combined gas types will result in an octane level somewhere in the middle — something the vehicle “will survive,” according to The Drive.

What happens if you put supreme gas in a regular car?





That said, putting premium gas in a regular car won’t hurt it. But you’ll certainly spend more per gallon, and your regular car won’t get better fuel economy with high-octane fuels. Ideally, any car with a high-compression engine or parts, or even turbochargers, deserves premium gasoline.

What happens if I put 100 octane in my car?

The fuel burns cooler and may clog your catalytic converter. You certainly won’t see any better power or mileage from it, unless you’re tuned for 100 octane. It’s sold solely for cars that are tuned for 100 octane: race cars and offroaders.

Can high octane cause misfire?

Answer provided by. I’m sorry to hear about your vehicle issues! If your vehicle calls for high octane fuel, running lower octane can compromise power, reduce MPG, and cause a misfire. Lower octane gas impacts your vehicle’s spark plugs and air to fuel ratio in the cylinder, which can damage the engine.

Is premium gas really worth it?

If your car doesn’t require premium, fill up with regular.



In a consumer notice, the Federal Trade Commission, notes: “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.”

What cars only take premium gas?

15 ‘Regular’ Cars That Take Premium Fuel



  • Buick Envision (with 2.0L turbo)
  • Buick Regal (all models)
  • Buick Regal TourX (all models)
  • Chevrolet Equinox (with 2.0-L turbo)
  • Chevrolet Malibu (with 2.0-L turbo)
  • Fiat 500L (all models)
  • GMC Terrain (with 2.0-L turbo)
  • Honda Civic (with 1.5-L turbo)

What is the benefit of high octane fuel?

The purpose of octane isn’t to enhance combustion but rather to prevent the “air-fuel” mixture from igniting inside the engine prematurely. So, the higher your fuel’s octane is, the more resistant your engine is to knocking. If you hear knocking, you’re likely using the wrong octane for your car.

Does premium gas last longer than regular gas?

Sadly, there’s nothing in premium gasoline that would make it last longer than other fuels from the pump. Since the distinguishing feature is the higher-octane levels, the only real benefit you gain is lowering the chance of engine knocking, which isn’t much of a threat on most modern fuel systems.

What is the best gas to put in your car?

Regardless of whether your car calls for regular or premium, the best choice for ongoing performance and economy is a TOP TIER gasoline. Recent AAA testing found TOP TIER gasolines keep internal engine components up to 19 times cleaner than gasolines that only meet minimum EPA standards.

What happens if I put premium instead of regular?

No matter what you’ve heard, premium-grade gasoline won’t do more to clean deposits from your fuel injectors or other parts of the fuel system because today’s regular gas contains the same detergent additives. The main difference with premium is its octane rating — 91 or higher compared with 87 for regular octane.

Is it good to use premium gas once in awhile?

As far as fuel efficiency goes, the difference is insignificant, so we don’t recommend filling up on premium unless you have to. Currently, there are no significant proven results that substantiate improvement on the health of your engine or the car’s fuel efficiency if you use premium fuel.



What happens if you put supreme gas in a regular car?

That said, putting premium gas in a regular car won’t hurt it. But you’ll certainly spend more per gallon, and your regular car won’t get better fuel economy with high-octane fuels. Ideally, any car with a high-compression engine or parts, or even turbochargers, deserves premium gasoline.

What cars require premium gas?

15 ‘Regular’ Cars That Take Premium Fuel

  • Buick Envision (with 2.0L turbo)
  • Buick Regal (all models)
  • Buick Regal TourX (all models)
  • Chevrolet Equinox (with 2.0-L turbo)
  • Chevrolet Malibu (with 2.0-L turbo)
  • Fiat 500L (all models)
  • GMC Terrain (with 2.0-L turbo)
  • Honda Civic (with 1.5-L turbo)