AAA pointed out that premium fuel can cost $0.50 more than regular nationwide.
This is the typical time of the year - leading up to Christmas and New Year's - when gasoline prices come down.
In some cars, usually luxury models, Premium fuel is actually required, not just recommended.
AAA's research targeted vehicles with manufacturer recommendations for premium gas.
Fuel economy for test vehicles averaged a 2.7 percent improvement.
The research suggests premium fuel works best on engines calibrated specifically for high octane. "Based on AAA's testing, vehicles that only recommend premium gasoline can't take full advantage of higher octane fuel and, as a result, the benefit that comes from upgrading to premium gasoline may not offset its high cost", he said. S. recommend, but do not require, premium gasoline.
The average retail gasoline prices across the state have fallen four cents per gallon in the past week, averaging $2.54, according to GasBuddy's daily survey of 2,158 gas outlets in Colorado.
"There's no question that higher-octane premium fuel has the potential to boost a vehicle's fuel economy and performance, however, engines have to be calibrated to require that fuel to see the full benefit", John Nielsen, AAA's Managing Director of Automotive Engineering and fix, said in a statement.
Drivers who shell out the extra cash to fill their tanks with premium fuel may be wasting their money, according to new research by AAA.
The most expensive gas price averages in Georgia were in Savannah at $2.37 per gallon, Brunswick at $2.36 and Atlanta at $2.34. Engineers at AAA set out to see whether using Premium gas instead of Regular really makes a difference in these cars.
While some vehicles are created to run on premium octane gasoline, others simply recommend it. AAA set out to determine the effects of using premium gasoline in vehicles that recommend it and whether the benefits in fuel economy and horsepower are worth the higher price at the pump. Always use premium gasoline on vehicles that require it. Weak demand contributed to the build, even as gasoline production in the region fell to 1.48 million barrels per day, and will continue to help prices decline throughout the fall and winter.
"It's better to run a higher quality low octane fuel than a lower quality high octane fuel", Bryant said.
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