Question: Is Putting Different Gas In Your Car Bad?

Is it OK to mix 89 and 93 gas?

No, you will not damage your engine by mixing different octane fuel.

It is still fuel.

Say you mixed 2 gallons of 87 octane with 2 gallons of 89 octane and 2 gallons of 93 octane..

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.

What happens if you put wrong gas in car?

This mistake is a different story. Using lower octane fuel in a vehicle that requires premium gas could cause some serious internal damage. … Luckily, the engine computers can adjust the timing to limit the amount of damage caused, but you’ll definitely notice lower fuel economy and reduced performance in your vehicle.

Will mixing premium and regular gas mess up your car?

By using higher octane fuel where lower is specified, you will create no problems with your engine. It does not (by popular belief) add any power to your engine, but will not harm it at all. … When you mix different octanes of fuel, you are either increasing or decreasing the octane of the fuel at hand.

Is it bad to put 2 different types of gas in your car?

Mixing grades is not going to do any harm to your car. If your vehicle requires 87 octane unleaded then there’s absolutely *no* advantage to using a higher octane gasoline. … You’re better to spend your fuel dollars on “top tier” gasoline than wasting it paying for octane your engine cannot use.

What happens if you put 87 octane in a 93 octane car?

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 may feel a difference in the way the vehicle runs and may notice an improvement in gas mileage, but that’s about all that will happen.

Is changing gas bad for your car?

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 are signs of bad gas?

Symptoms of bad gas include:Difficulty starting up.Rough idling.Pinging sounds.Stalling.Check engine light illumination.Reduced fuel economy.Higher emissions.

Do cars really need premium gas?

Some manufacturers recommend premium gas but say that regular or mid-grade gas can be used instead. They usually warn that using lower-octane gas could reduce performance and fuel economy. When that happens noticeably, or if engine knock occurs, they advise to start using premium.