Premium vs. Regular Gas: What’s the Difference?

Gas pumps in a row

Have you ever wondered about the difference between premium and regular gas when you stop at the local Bensenville gas station? Follow along with the team at Larry Roesch Chrysler Jeep Dodge Ram to learn more about the types of gas and how to figure out which gas type is right for your make and model. If you have any questions, contact the certified technicians in our service center. 



Premium Gasoline

While the difference between premium and regular gas matters when it comes to filling up at Addison gas stations, both share similar qualities like the fact that they are produced from crude oil and are combustible. Using premium gasoline helps with keeping your engine cleaner, and leads to less pollution, but what also differentiates them is their octane level. Typically, premium gasoline has an octane level of 90 or more. 


Regular Unleaded Gasoline

Comparing premium vs. regular gasoline, drivers will find that regular unleaded gasoline is the more common type of gas, and can work with most vehicles on the road. Unleaded gasoline is safer for the environment and the drivers’ health than gas containing lead. The octane level of regular unleaded gas in 87, which indicates how well it can combat inappropriate fuel combustion. 


Comparing Premium and Regular Gas

Let’s take a look at some differences between premium and regular gas:

  • Octane Rating: With a higher octane level, there’s less chance of harmful engine knocking, or pre-ignition. That means knocking is less likely to occur with premium gasoline than regular unleaded. 
  • Engine Suitability: Engines that have lower compression ratios are better equipped for regular unleaded gas as it burns faster than premium gas. Vehicles with a higher compression ratio in their engine will benefit from premium gasoline. 
  • Price: You’re sure to notice the price difference of premium gas vs. regular unleaded gas at the pumps around Glendale Heights. There can be as much as a 20 to 40 cent difference between the two with premium being the more expensive option.


When debating whether to fill up with premium or regular gasoline, take note of some to these tips:

  • Fueling up with premium gas when your vehicle doesn’t require it doesn’t improve vehicle performance or longevity.
  • Typically, vehicles that require premium gas won’t be harmed by using regular gas, however, it’s best to use premium gas if engine knocking is heard. 
  • Vehicles that utilize turbochargers may find it necessary to use premium gas. 


Learn More Service Tips with Larry Roesch Chrysler Jeep Dodge Ram!

Now that you have a better understanding of premium vs. regular gasoline, which type is best for your vehicle? If you still have questions, don’t hesitate to contact us. If you’re interested in learning more about your vehicle service or other ways you can improve your car care, take a look at our service tips and tricks.


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