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The answer is both yes and no. There are several factors to consider when choosing which gasoline to use. The factors to consider are what the manufacturer of your vehicle recommends and whether your state is an emission testing state.

The reason that Auto Manufacturers recommend a certain type of fuel is both for fuel economy and emissions standards. In order to meet governmental standards regarding emissions, Auto Manufacturers will choose both a certain weight of oil and type of gasoline. These affect the overall operation of your engine and the emissions resulting.

If your state is an emissions testing state the consideration as to follow Manufacturers guidelines is very important. This will aid your chances of passing your emissions test without cheating. That is why the car makers design the engine size, oil weights, and fuel types in the first place.

And occasionally, running premium in your regular grade recommended vehicle can actually clean your system. This can result in a cleaner burn and clear out any wastes for a lack of a better term while using regular grade fuels. Just like using an octane booster, the fuel burn will be warmer and thus burn off any build-up in your combustion chamber is possible.

This is of course only one persons opinion and based entirely upon my time working in a Ford Lincoln-Mercury shop. I saw Lincoln Town Cars daily and seen what the manufacturer recommended for fuels.

Learn more about this author, J. Lee Kenser.
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