It may be tempting to opt for the lowest-priced option, but ensure it meets the engine requirements. Read more at ...

With Project Pure Poncho fully broken-in and its power documented (491.8 hp/551 lb-ft), it was now time to begin our research and development work. As a review to those who may not have followed the ...

Does your street-driven car ping now when it didn't use to? It may be suffering from octane creep caused by deposit buildup inside the combustion chambers. New engines on the dyno and regularly ...

Tugboat was my family's 1987 Dodge Caravan, which faithfully served us for years until its transmission finally exploded one lovely summer afternoon. Her 3-liter V6 was electronically fuel-injected, ...

In the June 2006 issue of Motor Trend, our "Strike Force: Target Z06" cover story highlights the track test five of America's hottest tuner vehicles against America's best factory supercar: the new ...

Whenever you fill your (gasoline-fueled) car, you have choices—one of them being premium. What is this high-test fuel anyway? Is it required for your car? Merely recommended? Or only a waste of money?

Octane ratings refer to the stability of fuel, and dictate at which pressures the fuel will spontaneously combust. Engine knocking can happen when the octane rating is too low, resulting in pinging ...

Anyone that’s ever topped off their tank or filled up a jerry can knows gasoline comes in different grades, from regular unleaded to pricey premium. Each “flavor” has a number that corresponds to its ...

Many passenger vehicles, including three-wheelers and motorcycles, are fueled by octane 95 gasoline when octane 92 gasoline is available at a lower price. Otto Engines (Gasoline Engine) can burn most ...

Some new cars claim to require premium fuel, others recommend it and most new vehicles on the road today are perfectly happy with regular fuel with nary a hiccup. Simultaneously, we're bombarded by ...