What Happens If You Put The Wrong Kind Of Gas In Your Car?

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On a daily basis, most of us drive a car or truck that requires regular, unleaded gasoline. This makes it pretty simple when we fill up at the gas station. But every once in awhile, someone may accidentally fill their vehicle with a different gasoline than usual.

Most of today’s vehicles are technologically advanced enough to tell the difference between lower octane gas and higher octane gas (regular and premium); cars and trucks have electronic fuel management systems that will notice the switch and adjust the ignition timing and fuel injection to cope.

What should you do if this happens?

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. 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.

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