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  • which fuel

    would it be safe and will it make any difference if i use a higher octaine fuel in my astra as i havent had any upgrades yet would it just be wasting money or does it improve perfomance.
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  • #2
    Makes it run better/smoother.
    I put normal unleaded in mine once and it made it run like $hit.

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    • #3
      i put the highest octane in i can find locally.

      Also V power as we dont a Tesco 99 around here.

      Whats the point of having an expensive high performing car if you are going to use cheap fuel!

      p.s. It makes loads of difference.

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      • #4
        my car is standard, and i run it on 95 i think im the only one, but see it as a test subject/guinea pig. i see no real problems with it, i ran it on optimax for a while, and didnt really notice a difference.

        the book does state that performance may be effected with a lower octane fuel

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        • #5
          fill up on top or run the tank empty
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          • #6
            Doesn't matter really.

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            • #7
              run the tank empty

              run through 3 tankfuls of the higher octane which should allow the engine to adjust

              see how it feels


              /doesnt really matter just allow time for it to make a 'difference'

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              • #8
                cheers m8
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                stage 2

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                • #9
                  Im Tesco 99 I find it works best for me.

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                  • #10
                    shell or optimax for me from day 1 and runs greeeeat
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                    stealth no more but beware of the silver lightning GSI with vxr power
                    M.U.F.C.
                    http://www.courtenaysport.co.uk/

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                    • #11
                      I thought u preferred T99 worsy? I prefer tesco's - much more noise and oomph.

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                      • #12
                        WHATS THE HEIGHEST OCTAINE AVAILABLE
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                        • #13
                          Originally posted by Dizzy
                          I thought u preferred T99 worsy? I prefer tesco's - much more noise and oomph.
                          yeh usually but if i'm in hitchin i get the optimax

                          oh and the highest is bp's on this link http://www.bp.com/genericsection.do?...tentId=7017179 but it's quite exspensive
                          sigpic
                          stealth no more but beware of the silver lightning GSI with vxr power
                          M.U.F.C.
                          http://www.courtenaysport.co.uk/

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