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Thread: High Rom Fuel

  1. #1
    Fellow Frogger! Dr_Pug's Avatar
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    Default High Rom Fuel

    Have noticed that one my local petrol stations (non franchise) is selling 102 and 110 rom fuel via a locked bowser.

    Price

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    102 rom @ $3.15 /L
    110 rom @ $4.20 /L

    I gather a permit (racer/drag) is required to purchase the 110 rom hence there locked. Either that or a poor old mum would get the shock of her life after filling up a 50L thinking its just normal fuel.

    Anyway, I thought to myself what kind of performance increase would you get if you put half a tank of 102 or 110 rom mixed with 98 rom. Obviously running a full tank of 102/110 on a stock motor would probably be detremental but perhaps with a mixture you should expect improved performance and greater fuel effeciency?
    Last edited by WRC180; 13th April 2005 at 11:28 PM.
    04' GTi 180

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    1000+ Posts PeterT's Avatar
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    Quote Originally Posted by blackster
    Anyway, I thought to myself what kind of performance increase would you get if you put half a tank of 102 or 110 rom mixed with 98 rom. Obviously running a full tank of 102/110 on a stock motor would probably be dentremental but perhaps with a mixture you should expect improved performance and greater fuel effeciency?
    None really, unless you've got enough compression to make use of it. How much compression does a 180 have? If more than 11:1, then try 20L of 102 when you tank is almost empty.

    The resultant RON is proportional to the volumes of the fuels mixed together. So 10L of 98 and 10L of 102, would have a RON of 100.

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    Fellow Frogger! Dr_Pug's Avatar
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    Quote Originally Posted by PeterT
    None really, unless you've got enough compression to make use of it. How much compression does a 180 have?
    Some sites are saying 11:1 where as others are saying 10:8 i wonder if thats the difference between the euro ed and aussie ed.
    04' GTi 180

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    1000+ Posts kermit's Avatar
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    Quote Originally Posted by blackster
    102 rom @ $3.15 /L
    110 rom @ $4.20 /L
    Won't be long before ULP hits $3 the way it is going. A news story the other night showed ULP at $1.55 on the mid-north coast of NSW - Kempsey, Port Macquarie, Taree area.
    Cheers Simon
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    1000+ Posts kermit's Avatar
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    Quote Originally Posted by blackster
    Some sites are saying 11:1 where as others are saying 10:8 i wonder if thats the difference between the euro ed and aussie ed.
    Engine is the same between us and them. I suspect web site errors. What does the handbook say?
    Cheers Simon
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    Quote Originally Posted by kermit
    What does the handbook say?
    Would you believe its not in the drivers handbook, well i couldnt find it....
    04' GTi 180

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    2000+ Brad's Avatar
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    Further to what Peter said, a RON rating is NOT how powerful or volitile the fuel it, it's a measure of it's ability to resist detonation from high compression or retardation. The higher RON value simply allows you to run more of either, or both which in turn gives more power. Therefore, if your engine is not designed or tuned to a fuel higher than 91/95/98 then going to anything higher is pointless. There is the ability of the engine to retard the timing but it would need to have knock sensors and have the ECU calibrated for these high RON fuels, which most are not. Even then, you get more 'bang' for your buck (pun intneded) when you up the compression.
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    1000+ Posts Dave's Avatar
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    Why can't a Brisbane servo do this. My car could definately use it!!!

    Dave


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    Gone Fishin' Ray Bell's Avatar
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    Originally posted by kermit
    Won't be long before ULP hits $3 the way it is going. A news story the other night showed ULP at $1.55 on the mid-north coast of NSW - Kempsey, Port Macquarie, Taree area.
    That was a beat-up about one solitary servo... it's not typical of prices up and down the coast. Not at all.

    Cast your eyes over three or four pages of the 'fuel prices' thread and see what I mean...

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    Because higher RON fuel is harder to ignite, using uber-high RON fuel in a car not designed for it could surely reduce the performance, no?
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    The other thing I would be worried about is How are they making it higher RON. If they are adding toluene or something themselves to standard 98 octane fuel, then you could be in for all sorts of woes.

    Tony.
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    Quote Originally Posted by Wintermute
    The other thing I would be worried about is How are they making it higher RON. If they are adding toluene or something themselves to standard 98 octane fuel, then you could be in for all sorts of woes.

    Tony.
    This servo, is apprently the real thing as it has been endorsed and advertised at WSDR. I see people going past and filling 20L drums of the stuff, so i gather they must be using it for race cars. Either that or they have one severly modded mower
    04' GTi 180

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    Quote Originally Posted by blackster
    This servo, is apprently the real thing as it has been endorsed and advertised at WSDR. I see people going past and filling 20L drums of the stuff, so i gather they must be using it for race cars. Either that or they have one severly modded mower
    It's just what they've made to replace Avgas or BP100. Rally cars have been using it for some time. The lubrication wholesaler near me, Green Goanna, sells the stuff as well.

    Which servo is it?

    '92 205 Mi16
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    Quote Originally Posted by PeterT
    Which servo is it?
    ETS Racing fuels

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    04' GTi 180

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    Quote Originally Posted by kermit
    Engine is the same between us and them. I suspect web site errors. What does the handbook say?
    I wouldn't trust the specs in the back of the handbook, as strange as it seems.

    I remember finding a few numbers in the back of the 307's manual that didn't quite add up. In general though, the amount of technical information in the back of the current Peugeot manuals is fairly paltry.

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    Gone Fishin' Ray Bell's Avatar
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    All of which raises the question... have aircraft now been forced to go over to unleaded fuels?

    I'm getting some interesting pictures of Cats hanging out the side of the average Cessna... but that aside, if not, these high octane fuels would be illegal on the road or the track.

    One assumes they're not... so what's the go with aircraft?

  17. #17
    1000+ Posts PeterT's Avatar
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    Quote Originally Posted by Ray Bell
    All of which raises the question... have aircraft now been forced to go over to unleaded fuels?

    One assumes they're not... so what's the go with aircraft?
    They're going to continue using leaded fuel I believe. The end of leaded fuel in motorsport is supposed to occur on the 30 June. That's when the leaded fuel passbook system expires anyway. I haven't heard anymore though.

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  18. #18
    Gone Fishin' Ray Bell's Avatar
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    Really?

    I thought the leaded fuel was made illegal way back when unleaded came in? I remember John McCormack talking about it and also brews being made up with Toluol for BP customers on the circuits.

    In fact, that was before unleaded came in... what was that all about?

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    1000+ Posts tekkie's Avatar
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    Quote Originally Posted by PeterT
    They're going to continue using leaded fuel I believe. The end of leaded fuel in motorsport is supposed to occur on the 30 June. That's when the leaded fuel passbook system expires anyway. I haven't heard anymore though.
    you wouldnt be talking about AVGAS by any chance. AVGAS is definately getting banned from racing circuits (I think) at the end of next year .
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  20. #20
    Gone Fishin' Ray Bell's Avatar
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    What's the 'leaded fuel passbook system' anyway?

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    1000+ Posts PeterT's Avatar
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    Quote Originally Posted by Ray Bell
    What's the 'leaded fuel passbook system' anyway?
    If you have a CAMS license you can apply for a "leaded fuel passbook". This enables you to buy avgas (BP100) at the circuit or fuel distribution outlets. CAMS has a list of suppliers. They sign your book and record your CAMS license number. Maximum is 200L/week from memory. It's definitely for track use only though, and I can't buy for anyone else. My passbook is only valid until 30 June 2005. I'm not sure what happens after then.

    '92 205 Mi16
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  22. #22
    Gone Fishin' Ray Bell's Avatar
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    And if you don't have a CAMS passbook, what happens then?

    For instance, if you don't run CAMS events but run AASA events instead?

  23. #23
    1000+ Posts PeterT's Avatar
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    Quote Originally Posted by Ray Bell
    And if you don't have a CAMS passbook, what happens then?

    For instance, if you don't run CAMS events but run AASA events instead?
    All you need is a CAMS license to apply for a passbook. The application can be downloaded from the CAMS website.

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  24. #24
    Gone Fishin' Ray Bell's Avatar
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    And if you have an AASA licence and no CAMS licence?

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    Quote Originally Posted by Ray Bell
    And if you have an AASA licence and no CAMS licence?

    give them a call and ask them then let us all know

    twice you have asked the same question so obviously it's a hint to make a call and find out as most on here i'd say enter CAMS run events under CAMS affiiliated clubs
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