I’m pretty enamored of my car, so I try to do right by her by using premium gasoline. But is 93-octane gas significantly worse for the environment than run-of-the-mill unleaded? As a native Angeleno ...

We’ve been burning gasoline for well over a hundred years now, but some misconceptions about fuel—especially when it comes to octane—are so ingrained in the popular consciousness that even those of us ...

When you pull up to an ordinary gas station, you’ll see multiple types of gasoline. The most common here in the U.S. are listed as “regular,” “plus,” and “premium.” To the casual observer, it might ...

Gas prices remain stubbornly high, with regular-grade fuel averaging $3.50 per gallon nationwide according to the AAA. That’s lofty enough, but for those who drive a car that requires premium-grade ...

Ron is from Alaska and he wrote us it seems just to vent some frustration about the lack of high octane gasoline in his native state. His rant enlightened us on what it’s like to be a car guy ...

DENVER (KDVR) — Gas prices are fluctuating across the country, and a few states offer a “cheaper” octane option that isn’t found in most places. It has to do with the altitude. Most states have the ...

While gas prices are down somewhat from their lofty levels a year ago, most U.S. motorists would still likely consider a national average $3.74 per gallon, according to the AAA, to still be ...

We have all seen it, heard about it, or done it ourselves: Filled up our street cars with race gas in the hope of seeing a performance gain. But what does it really do? If a motor is happy with 91 ...

Increasing the octane standard for gasoline sold in the US would improve overall motor vehicle fuel efficiency more effectively than simply waiting for electric and other alternative-fueled cars and ...

With the price of regular unleaded gasoline still in the $4-a-gallon range, the comparative price of premium is kind of a bargain at many stations. Really. When the price of regular surged this spring ...

Saving a few dollars at the pump could end up costing you much more at the garage in performance, but it depends on your ...