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Author Topic: Interesting read re: 99 RON petrol  (Read 3762 times)

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Tony H

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Interesting read re: 99 RON petrol
« on: 11 December 2006, 19:49:38 »
http://www.thorneymotorsport.co.uk/gcs_article.php?artid=64&typelink=http%3A%2F%2Fwww.thorneymotorsport.co.uk%2Fgcs_article.php%3Ftype%3DNews%26subtitle%3D0%26title%3D0%26text%3D0%26toc%3D1 Link                                              
40 BHP or over 10% increase to a M3 csl when tested using 99 RON petrol   :o 8-) :y                                                              
« Last Edit: 11 December 2006, 19:55:23 by Tony_H »
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Del Boy

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Re: Interesting read 99 RON petrol
« Reply #1 on: 11 December 2006, 21:26:56 »
Quote
http://www.thorneymotorsport.co.uk/gcs_article.php?artid=64&typelink=http%3A%2F%2Fwww.thorneymotorsport.co.uk%2Fgcs_article.php%3Ftype%3DNews%26subtitle%3D0%26title%3D0%26text%3D0%26toc%3D1 Link                                              
40 BHP or over 10% increase to a M3 csl when tested using 99 RON petrol   :o 8-) :y                                                              

I'm gonna start using 99 again ;D
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STMO123

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Re: Interesting read 99 RON petrol
« Reply #2 on: 11 December 2006, 21:40:11 »
Been using shell optimax for a while now. I thought I had more power but told myself I was imagining it. I should listen to myself more often :y
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MikeDundee

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Re: Interesting read 99 RON petrol
« Reply #3 on: 11 December 2006, 22:28:51 »
I am going to go the extra mile now to Tescos garage :y
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Chopsdad

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Re: Interesting read 99 RON petrol
« Reply #4 on: 11 December 2006, 22:35:25 »
I run BP Ultimate for a treat - or when dragging my caravan and do notice gains in power and torque but i'll try Tesco if it's good enough for a CSL.  Will the higher burn not damage valve seats - don't know what that means but my dad always mentions it with high octane fuels.  :-/
« Last Edit: 11 December 2006, 22:35:44 by Chopsdad »
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JamesV6CDX

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Re: Interesting read 99 RON petrol
« Reply #5 on: 11 December 2006, 22:38:27 »
I didn't notice any difference when using it in my V6 - but i DID notice a BIG drop in MPG compared to usual 95 ron.
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MikeDundee

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Re: Interesting read 99 RON petrol
« Reply #6 on: 11 December 2006, 22:41:23 »
Yeah BP Utimate  now and again, closer than tescos, but long term damage ?
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Marks DTM Calib

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Re: Interesting read 99 RON petrol
« Reply #7 on: 12 December 2006, 08:39:19 »
Very unlikely to damage the valves and seats....the head cooling on the V6 is pretty good and modern valve seats are as hard as nails.

I suspect the 2.5 and 3.0 V6 will like the high octane fuel as they are pretty high compression....so could run more spark advance before pinking occurs. Note that it is likely to take time for the ECU to adjust the spark map.
« Last Edit: 12 December 2006, 11:59:10 by Mark »
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bob.dent

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Re: Interesting read 99 RON petrol
« Reply #8 on: 12 December 2006, 10:22:22 »
Quote
I run BP Ultimate for a treat - or when dragging my caravan and do notice gains in power and torque but i'll try Tesco if it's good enough for a CSL.  Will the higher burn not damage valve seats - don't know what that means but my dad always mentions it with high octane fuels.  :-/

I've been using this all the time for last few months - definitely seems to perform better than on the cheaper supermarket fuels. Very slight improvement on fuel economy too, but only a couple of mpg.
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nixoro

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Re: Interesting read 99 RON petrol
« Reply #9 on: 12 December 2006, 10:34:39 »
Quote
I didn't notice any difference when using it in my V6 - but i DID notice a BIG drop in MPG compared to usual 95 ron.

Perhaps you have a similar problem to me, a heavy right foot :y always hitting the go pedal ;D
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Martin_1962

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Re: Interesting read 99 RON petrol
« Reply #10 on: 12 December 2006, 10:37:37 »
I don't go below 97RON I think the car could easily have a higher CR to cope
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Salty

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Re: Interesting read 99 RON petrol
« Reply #11 on: 12 December 2006, 11:42:02 »
Always used to run the Volvo on optimax, only started putting it the Meega recently.
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hotel21

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Re: Interesting read 99 RON petrol
« Reply #12 on: 12 December 2006, 11:45:04 »
It certainly makes a difference to mine.  Car is more responsive on Opti or Vmax etc.  
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Salty

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Re: Interesting read 99 RON petrol
« Reply #13 on: 12 December 2006, 11:47:38 »
Quote
It certainly makes a difference to mine.  Car is more responsive on Opti or Vmax etc.  

It made a difference with the volvo as well. I intend to keep putting it in now  I've started
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hotel21

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Re: Interesting read 99 RON petrol
« Reply #14 on: 12 December 2006, 11:49:23 »
Also tried it in the wifes 1.4 206.  No difference to speak of.  

The FJ1200 likes it though, for some reason!
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