With all the different engine and combustion theories being tested at the Engine Masters Challenge, it made us wonder about the fuel these powerplants were gulping down. For the 2015 event, we had ...

Q: I drive a 2001 Lexus LS430 with 58,567 miles. The car manual says I should use gasoline with an octane of 96 or higher. I cannot find an octane that high. Any suggestions? A: The LS430 owner’s ...

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 ...

Q: I drive a 2001 Lexus LS430 with 58,567 miles. The car manual says I should use gasoline with an octane of 96 or higher. I cannot find an octane that high. Any suggestions? — J.S., Fort Lauderdale, ...

It''s used to measure the quality ofgasoline (petrol) and defined as the percentage of iso-octane by volume in amixture of iso-octane and n-heptane which has the same anti-knocking propertiesas the ...

Our gas is listed in a range of octane offerings, but American automakers are looking to simply that. By doing so, they say, they'll clean up the air, boost fuel economy, and save us money at the pump ...

76 Race Gasoline, the official fuel of NASCAR, is dispensed from a pump at the track. The gasoline is also available at the pump at distribution sites all across the country. Action is hectic during ...

Everyone from Nostradamus to the Department of Energy predicts that internal combustion engines will provide primary propulsion for the majority of the vehicle fleet for a few more decades. But it's ...

From April 1, India will mandate sale of E20 petrol with a minimum RON 95 rating nationwide, tightening fuel quality norms ...

Filthy myths run rampant when it comes to understanding race gas. Some say that the higher the octane the slower the burn rate. Others claim that too much octane reduces horsepower. Unfortunately, ...