That's the pressure at which the fuel injectors in the new Stellantis Hurricane 4 Turbo engine blast gasoline into the ...

Jowl Morrow, chief executive officer for Alpha Drivers Testing & Consulting, highlights his ultra-efficient Volvo VNL tractor and how his rig routinely reaches previously unheard of fuel efficiency.

Whether or not twin-turbo engines require premium gas is a matter for each individual engine manufacturer to decide. Reviewing some carmakers' statements as to which grade of fuel they recommend for ...