So how much of a difference does this actually make? - Page 3
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This is a discussion on So how much of a difference does this actually make? within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Originally Posted by xFalleNx omg wtf is wrong with people on here nowadays?! Just put diesel in it and come ...

  1. #31
    Gold Member lokey's Avatar
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    Quote Originally Posted by xFalleNx View Post
    omg wtf is wrong with people on here nowadays?!

    Just put diesel in it and come back and post results.
    This.

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  3. #32
    Luke Skywalker Mikie13's Avatar
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    Quote Originally Posted by Mf645 View Post
    On a stock WRX or STI you can safely run 87 octane fuel. If there is any knocking the boost and timing will be cut back to keep the engine safe. You will likely see less power and perhaps less milage but you are very unlikely to have any engine damage from 87 octane fuel.
    Once the engine is tuned, you do not want to run lower octane then what you are tuned for. The management sensors on the WRX are not very advanced compared to what is being used by GM, Ford and just about everyone else. So if your tuned for 93 octane and running higher the stock boost, 87 octane can cause knocking and the ECU will not be able to correct for it in time to prevent possible engine damage.

    Um, wrong.

    Please stop spewing incorrect information that can cause uninformed users to blow up their cars.
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  4. #33
    Sammich Makin' Pwincess wrxtreme06's Avatar
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    I'm gonna need everyone to start using premium fuel and not tell people that 87 is fine

    Crack is whack mmmk?

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  5. #34
    Captain James of the SS Impreza has gone down with the ship Drews's Avatar
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    Just for the record, the manual in my 06 said that you can run 87/89 in an emergency but that you should go through at least one tank of premium fuel before resuming regular driving habits.
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  6. #35
    Registered User silvercookie's Avatar
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    I go to the airport and put 100 octane in my car

  7. #36
    Registered User MainFrame's Avatar
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    Quote Originally Posted by Mf645 View Post
    On a stock WRX or STI you can safely run 87 octane fuel. If there is any knocking the boost and timing will be cut back to keep the engine safe. You will likely see less power and perhaps less milage but you are very unlikely to have any engine damage from 87 octane fuel.
    Once the engine is tuned, you do not want to run lower octane then what you are tuned for. The management sensors on the WRX are not very advanced compared to what is being used by GM, Ford and just about everyone else. So if your tuned for 93 octane and running higher the stock boost, 87 octane can cause knocking and the ECU will not be able to correct for it in time to prevent possible engine damage.

    no

  8. #37
    Registered User McBill's Avatar
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    Ok, I think I get it... I am a dumbass for somehow skipping over the part in the manual where it talks about what fuel to use (for those of you who think I didn't read the manual, I did. I guess just not thoroughly). I'm gonna go cry in a corner now.
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  9. #38
    ¯\_(ツ)_/¯ Rambo's Avatar
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    Quote Originally Posted by McBill View Post
    I'm gonna go cry in a corner now.
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