Customer cam in with an 05 Tacoma today, just an oil change...but while I was filling out the service reminder in the service book that he supplied, I also took a glance in the owners manual.

Sure enough, it says *Recomended fuel, 91 octane*
His is an 05 4.0 6 speed TRD Package

I noticed a solid 2 MPG increase in My ol' 92 Runner 3.0, 5 Speed whilst running 91 octane.

Also, seemed to have a *bit* more power, probably helped with the advanced timing.

With higher octane levels, it's a smoother,slower burn. Not so much as a *POP* with lower octane.

Havn't tried 91 with My Honda yet, $3.89 a gallon just isn't very appeling...but, my 33 MPG freeway sure is! <img src="/forums/images/graemlins/smile.gif" alt="" />

Maybe I'll try 91 on a tank, just for kicks...

-Dano-
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