Discover whether you should put premium gas in your car if it has a twin-turbo engine, and what Toyota recommends you use ...

Premium gas, also known as high-octane gas, can withstand more compression, but is it ideal for your lawn mower? What are the ...

Is Premium Worth It? Premium comes with an additional cost at the pump, usually about 50 cents more per gallon, and premium gas has no effect on vehicles that don’t need it. But if you have an ...

The octane shortage for premium gasoline is of particular concern as refiners move away from winter-grade. That type of fuel uses butane which is generally more plentiful, from natural-gas ...

In 2007, premium accounted for 9.4 percent of all U.S. gasoline sales, down from 9.5 percent the year before, Planting said. Ten years ago, premium represented 16.6 percent of the market, he said.

New gasoline promises lower wear and corrosion Replaces Shell%27s current premium gasoline A price increase is expected Lower friction and rust may improve engines%27 efficiency A new, more ...

Thus, for many high performance engines, premium gasoline is indeed recommended. But for most engines, you aren't going to get any more efficiency from premium fuel as you do from normal grades.

A list of cars, from 2012-18, that require premium gas is online at the Edmunds website. For 2018 models, the 18 percent that require premium has held relatively steady over the years.

Research by AAA has found that motorists wasted $2.1 billion in 2015 buying premium gasoline for cars that don’t require it. Using tests designed to evaluate vehicle performance, fuel economy ...

For years, premium accounted for 10 percent of gasoline sales, and recently it grew to 11 percent, which amounts to a 10 percent increase. Mid-grade fuels make up only 3 percent of the market and ...

The Sheetz gasoline-convenience store chain has been promoting some of its midgrade gasoline as “premium,” even though its octane level is too low to qualify, says a state delegate.Del. John P ...

Readers thanked us. And readers also told us we were wrong. Some said that their miles per gallon improved with premium gas. Yes, that can happen, but that’s not the same as fuel economy, which ...