Dyno test of budget friendly 5.3L LS engine that makes 416 hp on 87 octane gas We put together a budget 5.7L LS engine (327 cubic inches) to show that you don't have to go broke to enjoy the ...

Q. Is it necessary to use premium 91 octane gas or can I safely use regular 87 octane in my 2017 Acura RDX? What about mid-grade 89 octane? A. Acura recommends 91 octane fuel, and the key word is ...

According to this document, the 2.3-liter EcoBoost makes 275 horsepower and 300 pound-feet of torque when running on lower octane fuel. That's a substantial reduction of about 11.3 percent ...

It’s same story at Hyundai. Juriga said all of their products are rated to run on 87-octane fuel, though the Genesis models ...

There’s premium gasoline, mid-grade, regular and – depending on where you live – some even offer ultra-high octane ... mostly a waste of money. High-test fuel is typically priced anywhere ...

It’s same story at Hyundai. Juriga said all of their products are rated to run on 87-octane fuel, though the Genesis models and Equus luxury sedan will benefit from premium, delivering more ...