Which Octane to use??

[Thai]

Hey all,

This is from a TSB on the 2001-2003 Mitsubishi Montero 3.5 L V6 engine, which requires PREMIUM fuel:

-Using fuel with a higher than recommended octane may result in poor startability, engine stumble. hesitation, and/or stalling.

-Using fuel with a Lower than recommended octane number may reduce engine performance.

Model- Montero
Year - 2001
Engine-6G74-S4
Fuel - Premium
Octane-91

This is the first official word from a manufacturer about engines that require premium fuel.

Interesting....