What’s the Difference Between Premium and Regular Gas?

Gas pumps in a row

Have you ever stood before a Vienna gas pump, wondering about the difference between premium and regular gas? You’re not alone. The team at Mercedes-Benz of Tysons Corner frequently gets asked about premium vs. regular gas and which one to buy. To help you decide what is best for your new Mercedes-Benz model, read the guide below comparing premium gas vs. regular, and contact our service team with any questions.

What is Premium Gasoline? 

When deciding between regular or premium gas, you’ll find they share several qualities. Both are produced from crude oil, and both fuels are combustible. Where they differ is in octane level. Premium gasoline has an octane level above 90, which helps keep your engine cleaner and reduces environmental pollution. 

What is Regular Unleaded Gasoline? 

Regular unleaded gas is the most common kind around Mclean. It is better for your health and the environment than gasoline which contains lead. Its octane rating, indicating how well it combats inappropriate fuel combustion, is 87. 

The Difference Between Premium and Regular Gas

There are a few things that set premium vs. regular gas apart, and you should be aware of them for your Great Falls drives: 

  • Octane Rating: The higher the octane level, the less potential of the engine knocking, which can damage your engine. Sometimes called pre-ignition, it’s less common with premium gasoline. 
  • Engine Suitability: Regular unleaded gas burns faster than premium gas, making it more suited for engines with low compression ratios. Engines with high compression ratios need premium gasoline. 
  • Price: Premium gas can cost as much as 20 to 40 cents more per gallon than regular gas, which can add up quickly if you often drive out to Chantilly. 

Before deciding whether premium vs. regular gas is best for you, keep these things in mind:

  • If your car doesn’t require premium gas, it won’t boost your performance or enhance the vehicle’s longevity, so you might as well skip it.
  • If your car requires premium gas, regular gas won’t harm your engine. But, if you begin hearing knocking when you’re using regular unleaded gas, it’s a sign to switch to premium gas. 
  • It may be wise to use premium gas in cars with turbochargers. 

Mercedes-Benz of Tysons Corner is Always at Your Service!

If you have more questions about premium gas vs. regular, don’t hesitate to contact us. Whatever your car care needs, from new tires to a new battery or a new Mercedes-Benz, we’re here for you! Simply make a service appointment online or reach out to us today and let us know how we can help. 

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