The Difference Between Premium & Regular Gas – Is It Worth It?

Idea Forge
Oct 9
2 min read

If you’ve ever stared at the gas pump wondering whether to splurge on premium fuel, you’re not alone. Many drivers assume premium gas is automatically better—but is it really? At DM Motorsports in Midland Mint Hill, NC, we often get questions about fuel types. Namely the difference between premium & regular gas. Here’s what you need to know to make the right choice for your vehicle.

What Is the Difference Between Premium & Regular Gas?

The main difference lies in the octane rating, which measures a fuel’s resistance to engine knocking.

Regular Gas: Typically has an octane rating of 87
Mid-Grade Gas: Around 89 octane
Premium Gas: Rated at 91-93 octane

Higher octane fuels can handle more pressure before igniting, which helps in engines designed for high performance or turbocharging.

Does Your Car Actually Need Premium Gas?

Check your owner’s manual. Cars fall into one of two categories:

Required Premium – These engines are tuned to need high-octane fuel. Using regular can reduce performance and efficiency.
Recommended Premium – Regular gas won’t damage the engine but may slightly reduce fuel economy or power.

If your car doesn’t specifically call for premium, you’re probably just paying more for no benefit.

When Is Premium Fuel Worth It?

Premium may be worth it if:

Your car requires it (usually performance or luxury models).
You tow heavy loads or drive in high-heat or high-altitude areas often.
You notice pinging or knocking with regular gas (though that may also signal other issues).

The Bottom Line: Save or Spend?

In most cases, regular gas works perfectly fine unless otherwise specified. Using premium in a vehicle not designed for it won’t improve performance or clean your engine more effectively. You’ll just spend more at the pump.

Need Expert Advice?

Still unsure? The experienced team at DM Motorsports in Midland Mint Hill, NC can check your engine and fuel requirements to make sure you’re getting the best performance without wasting money. We're here to help with smart, honest advice—no body work, just great repairs and preventative care.