A stock photo of a gas pump.

Decisions at the gas pump could affect your vehicle’s performance

What happens if I use the wrong gas in my Mercedes-Benz? 

Among the best advice, the Mercedes-Benz of New London Service Department can give owners is to never delay or skip oil changes when they arrive at that maintenance interval. The next best piece of advice they would like people to take is, make sure the fuel tank of your Mercedes-Benz vehicle is always filled with the right type of fuel. If you’re wondering, ‘What happens if I use the wrong gas in my Mercedes-Benz,’ we reached out to the professionals working at the dealership’s service facility to get a few answers. Many, if not most modern Mercedes-Benz vehicles require the use of high-octane gasoline. Failing to follow that direction will likely have some consequences. Let’s take a look at a few things you should know. 

READ MORE: What’s new for the Mercedes-AMG® GLE 63 S Coupe? 

What is premium gasoline? 

There is an entire scientific discipline that studies gasoline. We don’t need to get too deep into the weeds of jargon to explain what premium-grade gasoline is and why it’s important to use. Basically, the entire discussion comes down to octane and the amount of octane that the fuel in question contains. High-performance engines will usually require the use of high-octane gasoline because it prevents engine knocking. This phenomenon is actually caused by small explosions of fuel-air mixtures in the engine. In essence, the octane rating of a gasoline product will determine how easy it is to ignite.  

Most states call gasoline with a 91-octane rating or higher, premium-grade gasoline. However, it is not uncommon for some gas stations to offer higher octane fuels, up to 93-octane. 

Using the wrong octane rating 

So, we all know that mistakes happen. If your vehicle requires premium-grade gas and regular-grade fills the tank, it is not the end of the world. However, the driver may notice a drop in performance and fuel economy while using that tank of gas. Once the vehicle is refilled with the right kind of fuel, everything should go back to normal. It is also important to point out that regularly using regular instead of premium could potentially cause long term damage to the engine, which could lead to very expensive repairs. 

If you have any questions about how to get the most from your vehicle, make an appointment with a Mercedes-Benz of New London product expert today.