Every time you gas up, you're faced with the decision. Do you press the "regular" or "premium" button at the pump? Are you ruining your car when you opt to save a few bucks, or are you pouring money ...

Using premium gasoline with a higher octane rating can improve how certain designs of motor vehicle engines perform. But does that mean you should consider using it with other motors at your house, ...

Fuel comes in different grades based on octane level at gas stations. Only some performance engines require Premium fuel for the best power output, fuel efficiency, and engine function. Are you ...

Compared to older days, gas prices haven't exactly been kind over the last few years, and with continued instability around the oil-producing parts of the world, it may not get much better anytime ...

In my nearly four decades of car ownership, I have driven a staggering variety of vehicles, from vintage Jeep CJ5s and CJ7s and International Scouts to turbocharged late-model Volkswagens and BMWs.

When you go to a gas station, you are presented with several types of fuel, each labeled according to an octane number. While most cars can do with regular gas (generally 87 octane), it is often ...

Some vehicles with premium fuel recommendations can run on regular octane gasoline. A hard-to-press brake pedal on startup could indicate a loss of vacuum in the power booster system. Compact, ...