Octane Rating for the 06 Highlander

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Thread: Octane Rating for the 06 Highlander

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    Default Octane Rating for the 06 Highlander

    Can anyone confirm if 87 octane gas is ok for the Highlander.

    I have read that for optimum performance 91 octane or higher is recommended.

    I am looking at getting rid of my 06 Rav V6 sport.

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    Default Re: Octane Rating for the 06 Highlander

    From the owner's manual

    Fuel type:
    2.4 L 4- cylinder (2AZ- FE) engine: UNLEADED gasoline, Octane Rating 87
    (Research Octane Number 91) or higher

    3.3 L V6 (3MZ- FE) engine: UNLEADED gasoline, Octane Rating 87
    (Research Octane Number 91) or higher
    For improved vehicle performance, use premium unleaded gasoline with an
    Octane Rating of 91 (Research Octane Number 96) or higher.
    ~Glenn
    Yes I am a pirate!


    "To err is human. To arrr is pirate."

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    Default Re: Octane Rating for the 06 Highlander

    Quote Originally Posted by nhparrot
    From the owner's manual

    Fuel type:
    3.3 L V6 (3MZ- FE) engine: UNLEADED gasoline, Octane Rating 87
    (Research Octane Number 91) or higher
    For improved vehicle performance, use premium unleaded gasoline with an
    Octane Rating of 91 (Research Octane Number 96) or higher.
    Glen:
    Do you know what if anything will happen if I use 87 octante as opposed to 91?

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    Default Re: Octane Rating for the 06 Highlander

    It runs fine on 87 but you will loose some power and on mine I loose about 2mpg on the highway. The computer adjusts for the lower octane.

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    Default Re: Octane Rating for the 06 Highlander

    Quote Originally Posted by breugel
    It runs fine on 87 but you will loose some power and on mine I loose about 2mpg on the highway. The computer adjusts for the lower octane.
    thanks....Do you notice any difference for city driving with respect to gas mileage?

    When you say the computer adjusts for the lower octane, are you referring to the knock sensor?

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    Default Re: Octane Rating for the 06 Highlander

    It helps some in the city. My guess it adjust the timing and mixture.

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    Default Re: Octane Rating for the 06 Highlander

    Over the weekend I used 87 octane in my '01 highlander(6cyl-AWD). Mostly highway driving i got 24mpg. I usually average 20mph mixed high./city).

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    Default Re: Octane Rating for the 06 Highlander

    thanks for your responses.

    The dealer is going to give me an 06 Highlander for the night to try out on the weekend.
    I am trading in my 06 Rav4 V6 sport.

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    Default Re: Octane Rating for the 06 Highlander

    What don't you like about the Rav4?

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    Default Re: Octane Rating for the 06 Highlander

    I have had a lot of issues:

    1)window rattle when not fully open or closed

    2)faint knocking sound on opposite side of uturns, more abrupt turns or full circle turns...becase of this, strut tower assembly replaced
    right strut & bearings replaced
    All did not rectify problem.
    now, backorder for left strut & bearings
    backorder for rack & pinion

    3) fuel pump went also on backorder

    4) not very comfortable ride on the v6 sport.

    I am looking for a more comfortable vehicle that is quiet & proven itself over the years.

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    Default Re: Octane Rating for the 06 Highlander

    Quote Originally Posted by backtolife
    thanks for your responses.

    The dealer is going to give me an 06 Highlander for the night to try out on the weekend.
    I am trading in my 06 Rav4 V6 sport.
    We'd be interested to hear your comments on the 06 Highlander. I really like mine and zero problems so far. Like it so much thinking about adding satellite radio from http://www.factoryinteractive.com/
    08 Toyota Highlander Hybrid Limited (former ride - 05 Tundra Limited Double Cab, 4x4, TRD Pkg, Trailer Tow, Auto Dimming mirror, Factory Bed Liner, Running Boards, Bug Deflector, Sun roof):

    Wife's Car :09 Prius - Silver, Solar Roof, Leather.

    Oh by the way, "Batteries are included" with the Prius & Highlander Hybrids

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