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Thread: MHD Tune and Toronto Fuel

  1. #1
    Join Date
    Jun 2021
    Location
    Toronto, Ontario, Canada
    Posts
    1
    My Cars
    2014 BMW 435i

    Question MHD Tune and Toronto Fuel

    I'm thinking of tuning my car(F32 435i) with MHD, but I'm concerned with the quality of the gas and whetherit'll cause knocking/timing issues. I live in Toronto, and from myunderstanding the gas here isn't as good as it is in the states due to additionaldetergents that were added.

    Can anyone with personal experience give me some input on whatto expect using i.e costco 91 with an MHD tune from Toronto?

  2. #2
    Join Date
    Oct 2021
    Location
    Canada
    Posts
    4
    My Cars
    2017 BMW 340xi
    The best 91 fuel is Shell 91 v-power. I will do some testing on the ethanol % in different premium gas in GTA. From what I read, the ignition timing of different E0 fuel can vary.

  3. #3
    Join Date
    Mar 2003
    Location
    Toronto, CANADA
    Posts
    166
    My Cars
    74 tii, 93 M5 x2
    Quote Originally Posted by BMW6ix View Post
    [FONT="]I'm thinking of tuning my car(F32 435i) with MHD, but I'm concerned with the quality of the gas and whetherit'll cause knocking/timing issues. I live in Toronto, and from myunderstanding the gas here isn't as good as it is in the states due to additionaldetergents that were added.[/FONT]
    [FONT="] [/FONT]
    Can anyone with personal experience give me some input on whatto expect using i.e costco 91 with an MHD tune from Toronto?
    If you are running a performance tune, go for the highest octane you can get and that's not 91 octane. Using up to 10% ethanol is not a problem, your car has wideband lambda sensors that can easily handle that.

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