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Regular , plus or premium : what should you fill up your car with ?
There are three kinds of gas : regular , plus and premium . Here ’ s a brief look at the different types and how you can determine which is best for your car .
Understanding the three fuel grades
The various types of gas have different octane ratings , which are a measurement of fuel stability . These ratings are based on the pressure at which a fuel will spontaneously combust in a test engine . The higher the number , the more stable the fuel . Regular gas has an octane rating of 87 ; plus gas has an octane rating that ’ s between 88 and 90 ; and premium gas has an octane rating that ’ s between 91 and 94 .
Selecting the right type of gas for your car The owner ’ s manual for your car will indicate what you should fill it up with . Always follow your car manufacturer ’ s recommendations .
If your car requires premium gas , this means that its engine has a high compression ratio and requires a higher-octane fuel . Using regular fuel in a car that takes premium gas can affect engine performance , decrease fuel economy and even cause engine damage .
For cars that take regular fuel , however , there ’ s no need to fill up with a higher grade than advised . It costs more , and using it offers no benefits .
If your car manufacturer says that premium gas is recommended but not required , this means that the engine runs best on premium gas but can take a lower-grade fuel without the risk of engine damage .
If you aren ’ t sure which fuel grade to choose or can ’ t find this information in your owner ’ s manual , ask a qualified mechanic in your area . n
For cars that take regular fuel , there ’ s no need to fill up with a higher grade than advised . It costs more , and using it offers no benefits .
ROBERT HUTSON
DONNIE JARVIS – Service Manager djarvis @ roberthutson . com 2316 1st Ave . SE Moultrie , GA 31788 • 229-985-5937 • 229-454-6066 CELL www . roberthutson . com
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48 MoultrieScene JULY 2023