Does Cheap Gas Damage Your Car?

Edmunds.com put this question to experts in several fields, including an automotive engineer at a major carmaker, gasoline manufacturers and two engineers with the American Automobile Association (AAA). It boils down to this: You can stop worrying about cheap gas. You're unlikely to hurt your car by using it.

Does cheap fuel damage engines?

Does Cheap Fuel Damage Engines? Using cheap gas won't harm your engine as much as buying an engine repair. No harm will come to your vehicle or its long-term performance will be affected.

What will happen if I put cheap gas in my car?

The car will run on regular fuel in a pinch, but you shouldn't make a habit of it. The fuel's lower octane can result in elevated exhaust-gas temperatures and possible knocking, both of which can adversely affect the engine's health in the long run.