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Thread: Switching to higher octane fuel?

  
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    truupR!'s Avatar
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    Switching to higher octane fuel?

    Hey just a quick question. Noticed that the 99 octane fuel
    in the nearest Tesco to me is the same price as normal fuel in the garage 50 yards away from the house (I drive past the Tesco each day for work though) I was wondering if I could fill up with this fancy high octane stuff with no worries? Or do I need to be aware of something before filling up?

    Tried to google it but came up with nothin' besides the constant arguement that if the 'gains' from a higher octane fuel is just a placebo effect or not :/
    drives: Black Coupe Turbo <3

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    Blue_Sport's Avatar
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    you can switch between the two with no problems, I tend to only fill up with one over the other if my tank is pretty much empty though
    *Irmscher Astra G Hatch,
    *2.2L 16v(Z22SE)
    *154.0BHP, 151.3 lbs ft torque...
    ...For now...

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    Ah good stuff! My tanks almost empty anyway. Computer says 10
    miles left u notice any difference in the car? Feel any different when ur running on higher octane n vice versa?
    drives: Black Coupe Turbo <3

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    Well....if your sig is correct with the 260bhp reading then you must be mapped!!! therefore using 99 is highly advisable anyway

    if however its just a wildly inaccurate bullshit and bravado willy waving pub talk figure then its not going to make a huge difference, although you may feel you're achieving a little extra power but you may get a few more miles to the tank though!

    If its the same price as your usual stuff then give it a go........dont go expecting miracles after one tank though! and dont whack in normal 95 the next time, youll need to use it for a good few tanks to at least see a realistic difference.

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    Billy Dean's Avatar
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    Quote Originally Posted by GeordieBandit View Post
    ........dont go expecting miracles after one tank though! and dont whack in normal 95 the next time, youll need to use it for a good few tanks to at least see a realistic difference.
    Does this principle hold true for vpower diesel too?
    i.e. you can only notice the difference after a tankfuls? Why a few tankfuls?

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    Because its got to run the old fuel out of the engine
    "Its not weather you get knocked down, its weather you get back up"

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    Yeah, but a few tankfuls?

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    it's got cleaners in it aswell so will take a couple of tanks to clear the crap out of the block. You'll notice on V-Power derv that you'll get a bit more smoke for a while, then you'll have a lot less from there on. My old mk4 derv used to run sweet on BP Ultimate diesel
    Gaz

    No longer owns an Astra


    Bye bye VXR Castle Combe Edition - because it's done more laps of Castle Combe than most Bergs have of the Ring

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    Still amazing that people dont have a clue about the likes of V-Power........ I always fill up with it and when I'm having a bad week use shit stuff I notice the effects..... £63 or Vpower Vs Normal ron...... I still have loads left on a friday!
    Celica T-Sport , Audi S3 , scania r series

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    As Marti has already said, in his own special way , if your car is mapped it would be advisable that you use it anyway as mapped cars run better on higher octane fuel.

    I always ran my vxr on Tesco 99 and it always ran better on that than regular 95 ron or the BP Ultimate which is 97 ron.
    "Sometimes the light at the end of the tunnel, is only the train coming to finish you off"



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