When you’re standing at the pump faced with a choice between regular and premium fuel, it’s tempting to assume that the higher-octane option must be better for your vehicle. But is it really worth the extra cost? The answer depends on what you drive—and how you drive it.

Let’s break down when premium fuel is necessary, when it’s optional, and how it affects both your engine and your budget.

What Is Premium Gas?

Premium gasoline typically has an octane rating of 91 or higher. Octane is a measure of a fuel’s ability to resist engine knock—a knocking or pinging noise caused by premature combustion in the engine.

Regular gas has an octane rating of 87, while mid-grade falls between 88 and 90. Most vehicles on the road are designed to run on regular gasoline.

Does Your Car Actually Require Premium?

To find out, check your owner’s manual or the sticker inside your gas cap. If it says “Premium Recommended”, you can safely use regular gas without damaging your engine. However, if it says “Premium Required”, then using lower-octane fuel could reduce performance and fuel economy, and in some cases, even cause engine damage over time.

Premium vs. Regular: The Price Gap

On average, premium gas costs 15% to 30% more than regular. If your vehicle doesn’t truly need it, you’re paying more for virtually no benefit. For a driver who fills up weekly, that could add up to hundreds of dollars in unnecessary fuel expenses each year.

When Premium Might Be Worth It

While most drivers can stick to regular gas, premium may offer some benefits in certain scenarios:

• High-performance engines with turbochargers or high compression ratios often require it.
  
• If your car is towing heavy loads or driving in high altitudes, premium may help prevent knocking.
  
• Some luxury brands specifically design engines around high-octane fuel requirements.
  

Always defer to the manufacturer’s guidance. If your manual says “required,” don’t skip it. If it says “recommended,” you may want to test both types and monitor fuel economy and performance yourself.

Still Want to Save on Gas? Try Other Methods

Instead of choosing premium gas for perceived performance gains, consider better ways to save:

• Track your fuel use with Fuelly or GasBuddy

• Use loyalty programs like Shell Fuel Rewards or Exxon Mobil Rewards+

• Pay with discounted gift cards or earn cashback through platforms like Fluz, where you can get cashback at BP and other stations

Conclusion

Premium fuel isn’t a luxury—it’s a requirement for certain vehicles and an avoidable expense for others. Always follow your car’s fuel recommendations and don’t assume higher cost equals better performance. By making informed choices at the pump, you’ll keep your car running smoothly—and your budget on track.