Unless a vehicle requires it, premium gas largely a waste, study finds

13 December, 2017, 06:11 | Author: Barbara Daniel
  • Gas Prices Drop in Rockford

The average price in MI on December 11 was 26.2% - $2.513 a gallon for regular and $3.171 for premium, according to.

Analysts with GasBuddy.com say thanks to a large build in gasoline inventories and demand reaching more average winter levels, prices have stabilized or dropped for most of the country, but say they anticipate prices in 2018 to be generally higher than this year. It was only these states that saw prices rise, ruining an otherwise countrywide drop in gas prices. "Drivers see the "premium" name at the pump and may assume the fuel is better for their vehicle", John Nielsen, AAA's managing director of Automotive Engineering and fix, said in a news release. The national averages are $2.462 and $3.007, respectively.

Some 1.5 million cars and trucks were sold in the US previous year that advise motorists to use premium gas.

"AAA's testing reveals that drivers could see modest gains in fuel economy and performance when opting for premium gasoline in vehicles that recommend, but do not require, the higher-octane fuel", Megan McKernan, manager of the Automobile Club of Southern California's Automotive Research Center, said in a statement.

"Individual vehicle test result averages ranged from a decrease of 1% (2016 Audi A3) to an improvement of 7.1% (2016 Cadillac Escalade)", the agency said. But that's just an average.

Horsepower for test vehicles averaged an increase of 1.4 percent. The story could obviously be different in vehicles that require premium, but in many cases these are high-performance cars where owners are happy to pay up for a boost in horsepower. That means filling up a 20 gallon tank would cost an additional $10 when using premium fuel.

The organization tested six cars where manufacturers recommend - but don't require - premium gasoline (rated as 91 octane or higher) and found that premium fuel had a slight benefit in "extreme driving scenarios", like towing or cargo hauling. But most engines are created to run on Regular all the time.



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