Five vehicles tested to see if premium gas actually performs better. Every vehicle is tested with both 87 and 91 octane gas, though all of the vehicles recommend using premium gas. There's a car from Europe, the US, and Asia. Some are turbocharged with direct injection while some are naturally aspirated and port injected.
*Shell hosted Jason Fenske at its labs in Houston, at race related events and at pre-launch events for Shell V-Power NiTRO+ Premium Gasoline. Watch as Jason Fenske from Engineering Explained as he shows viewers the difference between premium and regular gasoline.