Three environmental groups are suing the EPA, asking a judge to order the agency to reassess its regulations on the chemical.

Many configurations of the popular Ford EcoBoost engines run just fine on standard gas, but it turns out that you might see a ...

If you mix 87- and 91-octane gas in your vehicle, your engine won't fall out into the street. But will it damage your vehicle ...

With gas prices fluctuating and budget-conscious consumers seeking savings, the allure of cheaper gasoline options is ...

The reason some models take regular and others take premium boils down to the compression ratio of their engines. Models tuned with high compression ratios require high-octane fuel that won't ...

Swift is pursuing both an STC and ASTM path with its high octane fuel, 100UL, and it has chosen a clever way to gain market acceptance—and perhaps reach commercial viability—with the new fuel.

An accident involving the potentially lethal compound used in making high-octane gasoline could threaten hundreds of ...

The TikTok account for an auto body shop went viral after a worker shared what happens when regular gas is put in a car that lists premium.

Vehicle manufacturers often recommend high-octane gasoline — the premium grades at the pump — to get peak performance from turbo-charged or high-compression engines.

Expensive cars require expensive fuel, right? Not necessarily. Let us explain why some Lexus models need premium gas, but others can use regular gas.