Toyota recommends 87 octane for use in my 4.0 V6 tacoma. Would 89 or 91 octane make the engine perform better or improve MPG??? The short answer seems to be "HELL NO", that is unless your engine has been modified to increase compresson.....such as installing a super charger. I see what seems to be quite a few people here that proclaim to "ONLY" use 91 octane in their Tacomas. I wonder why?
It pisses me off to pay $3.25 for a gallon of 87 octane fuel. I cannot understand paying more $$$ for absolutely no gain If any of you know something different, please enlighten me.
See links below