Question: How Do I Know If My Car Requires Premium Gas?

Does premium gas mess up your car?

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..

What happens if I put regular gas instead of premium?

Using regular gas in an engine that requires premium could void your warranty. 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.

Does premium gas really make a difference?

With today’s modern fuel-injection systems however, that shouldn’t make much difference. Because premium gas has a higher octane rating than midgrade or regular gas, it produces a little more power when burnt. … In the real world, it barely affects performance, or fuel economy.

Can I mix 87 and 91 gas?

If you usually fill your tank up with 87-octane gasoline and you accidentally put in a higher octane blend (say, 91, 92, or 93), don’t worry. You’re actually filling your car or truck with a different blend of gas, which means it will burn differently in your engine.

What number is premium gas?

Gas stations in the United States generally offer three octane grades: regular (usually 87 octane), mid-grade (usually 89 octane), and premium (usually 91 or 93).

Is it bad to switch from regular gas to premium?

Technically, it would. But if the engine’s best performance takes place when the regular gas is used (usually for cars of older models), premium gas usage wouldn’t be much significant. So, switching fuels is simply wasteful. … Generally, higher octane fuels are used for vehicles with higher compression rations.

What kind of gas does my car take?

You should use whatever octane level is required for your car specified by the owner’s manual. Generally, regular fuel is 87 octane, premium is 91 or 93, and midgrade is somewhere in the middle; often 89.

Can you mix premium and regular gas?

It probably won’t hurt anything. If your car requires regular gas, the blend will have plenty of octane and detergent and may even run a little better or get a bit better mileage. … If your car needs only the lower octane gasoline to run well, you won’t see any advantage in the slightly higher octane of the mixed fuel.

Which gas is better 87 89 or 93?

Regular gas is rated at 87 octane in most states, while premium gas is often rated higher at 91 or 93. Fuel with a higher octane rating can stand up to higher compression before it detonates. Essentially, the higher the octane rating, the lower the likelihood that detonation happens at the wrong time.

What happens if you put 89 gas in a 87 car?

Using a higher octane than necessary If you opt for a higher octane than your manual recommends—say, 89 instead of 87—your car will be perfectly fine, an article on AAMCO’s blog explains. It will not, however, improve your car’s mileage or give it any sort of extra performance boost, according to Car Talk.

Does premium gas give better mileage?

Premium gas gives you more miles per gallon than regular gas. … In actual fact, you’ll get a greater range of fuel economy between different brands of regular gas, than you will between the same manufacturer’s regular and premium gasses.