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Thread: Fuel

  1. #1
    Regular Member Adam's Avatar
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    Have filled up with Shell V-Power recently, but not had the car long so I can't really say if it's giving me any more power or fuel economy (03 Vectra C, 2.2 litre Elegance).

    My question is, can the Vectra even use the 99 RON V-Power fuel? I know a lot of cars can't. Does anyone have any examples of power or fuel economy increases, and is the massive difference in price (over 10p per litre) worth it?

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    Regular Member MAF 3.2 V6 GSi's Avatar
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    i ve been using it for mine and notice a better mpg and performance , i get an extra 30-50 miles out of it i ve calulated. Sorry dont know what you mean can the vectra even use the v-power???

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    Regular Member Adam's Avatar
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    Quote Originally Posted by maf View Post
    i ve been using it for mine and notice a better mpg and performance , i get an extra 30-50 miles out of it i ve calulated. Sorry dont know what you mean can the vectra even use the v-power???
    A lot of cars aren't equipped to use the higher octane ratings - it's like sticking a 200W bulb in a 40W light fitting. It'll still shine, but only at 40W

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    Regular Member MAF 3.2 V6 GSi's Avatar
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    Quote Originally Posted by Adam View Post
    A lot of cars aren't equipped to use the higher octane ratings - it's like sticking a 200W bulb in a 40W light fitting. It'll still shine, but only at 40W
    oh , i ve never heard that . my opinon is it is worth the extra money and seeing as i get those extra miles (i have to drive sensible as well) it makes the money up itself .

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    Regular Member MysteryElite's Avatar
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    Quote Originally Posted by Adam View Post
    A lot of cars aren't equipped to use the higher octane ratings - it's like sticking a 200W bulb in a 40W light fitting. It'll still shine, but only at 40W
    If you do that you're more likely to shine at 200W until the 40W rated fitting burns out, blows a fuse or catches fire .

    Now I'm not saying you Vec will blow up with higher rated fuel as I know there have been a lot of posts about using it and with good results. The handbook (well mine anyway) states any good quality fuel, 95, 98 or 91 octane (however 95 is marked as the "recommended" fuel).

    I think the V-Power is 98 (99??), so there should be no problem, but whether it's actually worth the extra cost I'm not so convinced.

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    Regular Member SRIFlyer's Avatar
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    Hello mate, um not sure whether my other car is "equipped" or not, surely the higher octane fuel would just burn more efficiently? Purer fuel, less needed to run the motor? Its a 2000 X reg clio sport. It definately takes off a lot faster when running on the v power fuel like, mpg not sure about because the extra oomph means I toe it a bit more.

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    Regular Member MAF 3.2 V6 GSi's Avatar
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    Quote Originally Posted by MysteryElite View Post
    If you do that you're more likely to shine at 200W until the 40W rated fitting burns out, blows a fuse or catches fire .



    I think the V-Power is 98 (99??), so there should be no problem, but whether it's actually worth the extra cost I'm not so convinced.
    Hi mysteryelite how comes your not convinced???

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    Default

    I am yet to be convinced that it makes any difference at all.

    Someone needs to do a dyno run with std fuel and with this fuel as a comparison, for me to even start thinking about it.

    IMO 'opinions' or 'it feels quicker' are almost pointless statements, as they are definitely not objective. Data on the other hand can't be argued with.

    As a relatively high miler, my most important consideration is not MPG, BUT Miles per pound (MPP). Yes V shell etc etc is claimed to improve MPG, but does it improve MPP ??? as it costs considerably more to purchase.

    Is it all placebo?? It 'feels quicker' because I've been told it should??? and am paying more for it???

  9. #9
    Regular Member MysteryElite's Avatar
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    Quote Originally Posted by maf View Post
    Hi mysteryelite how comes your not convinced???
    Quite simply that the V Power (or equivalent) costs around 7 or 8 percent more than the bog-standard unleaded. I'd want an equivalent improvement in mileage to make it worthwhile using it. I don't personally think I'd get a 7-8% power improvement, and that would be subjective anyway.

    With the 3.2 on standard fuel I've got enough power and flexibility for use on UK roads probably 95% of the time anyway.

    My mileage this year has dropped a bit, but the previous couple of years I've been up around 18 - 20 K per year, mostly motorway, which means I'm cruising at 2-2,500 RPM most of the time anyway.

  10. #10
    Regular Member MAF 3.2 V6 GSi's Avatar
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    Quote Originally Posted by Ste View Post
    I am yet to be convinced that it makes any difference at all.

    Someone needs to do a dyno run with std fuel and with this fuel as a comparison, for me to even start thinking about it.

    IMO 'opinions' or 'it feels quicker' are almost pointless statements, as they are definitely not objective. Data on the other hand can't be argued with.

    As a relatively high miler, my most important consideration is not MPG, BUT Miles per pound (MPP). Yes V shell etc etc is claimed to improve MPG, but does it improve MPP ??? as it costs considerably more to purchase.

    Is it all placebo?? It 'feels quicker' because I've been told it should??? and am paying more for it???
    It costs me an extra five pounds to fill up than normal shell petrol (full tank) and getting an extra 30 to 50 miles is about five pounds so don t that even it out ??

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