Which Type of Fuel Do Mercedes-Benz Models Need?


Anybody that ever has pulled into a gas station with their Mercedes-Benz automobile for the first time knows the anxiety of wondering which gasoline is necessary for the proper daily function of that Mercedes-Benz SUV or sedan. At every gas pump there are three options, Unleaded, Plus, and Premium, and all of them have “Octane Rating” numbers plastered on the buttons that allow drivers to choose a fuel. Why are there so many different types of fuels, though, and which fuel is best for Mercedes-Benz vehicles? That’s a question we get here at Fields Motorcars quite often, but the answer actually is pretty simple.

Essentially, the higher the octane ratings, the more efficient the burn of that fuel in your engine’s combustion chamber. Lower octane gasoline will ignite and burn more quickly than higher octane gasoline, so determining which fuel to use really depends on the type of engine.

When it comes to Mercedes-Benz vehicles, most drivetrains feature high-compression engines that generate higher pre-combustion temperatures, which means using a lower octane fuel can cause the check engine light to come on right out of the gate. It’s always best to check the handbook for your specific model, but most Mercedes-Benz vehicles require an octane rating of 91 or higher. Lower-grade gasolines in engines meant for premium gasolines can lower fuel efficiency and reduce the life of the engine. Obviously, no car owner wants that to happen.

If you have used regular gasoline a time or two in your vehicle, though, fret not. Your engine is fine, but you probably don’t want to make a habit of buying the cheaper gas. It really could affect the longevity of your engine. Premium cars take premium gasoline, and most Mercedes-Benz models purchased at luxury car dealerships near Lakeland, FL are no exception.


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