Learn when premium fuel is actually required, what the different grades mean, and how to avoid paying too much.

A mechanic has warned motorists that using premium petrol and diesel will not always result in drivers getting better fuel economy. Brian, who runs the YouTube channel Honest Mechanic Colorado, ...

Engine knocking, or detonation, occurs when fuel in the cylinders ignites unevenly, causing metallic pinging sounds, reduced power, and potential engine damage. Key causes include low-octane fuel, ...

We all want the best for our cars and trucks, but is premium gas worth the premium cash?

These numbers are the octane rating of the fuel, as measured by the Research Octane Number (RON) and you’ll find the octane rating for your vehicle on a label inside the fuel door flap, or in the ...

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, ...

Q: Can you mix 91, 95 or 98 petrol together? A: Yes, you can, as long as you always use fuel with a higher RON (Research Octane Number, also known as octane rating or octane level, is an indicator of ...