Standing at the pump in Columbia, many drivers wonder whether they are helping or hurting their car by choosing regular, mid-grade, or premium fuel. There is a lot of confusion about octane, and understanding what those numbers mean can save you money and keep your engine running the way it should.

Octane is a measure of a fuel’s resistance to knocking, which is a kind of improper combustion that can occur in some engines. Higher-octane premium fuel resists knocking better, and certain engines, particularly high-performance and many turbocharged engines, are designed to require it. For those vehicles, using premium is not optional; it is what the engine needs to perform correctly and avoid potential damage over time.

The important thing is to follow what your owner’s manual actually says. If your vehicle only recommends premium, you may be able to use regular without harm, though you might notice a slight change in performance or economy. But if your manual simply calls for regular, spending extra on premium generally provides no benefit; your engine will not run better or last longer on it. Knowing your vehicle’s real requirement helps you avoid both unnecessary spending and potential engine issues.

At Exhaust Plus in Columbia, we are happy to help you understand what your specific vehicle needs and to address any knocking, pinging, or performance concerns you may have. If your engine has been making noises or you are unsure which fuel is right, stop by our Columbia shop and let us help.