Motoring Discussion > Racing fuels Miscellaneous
Thread Author: bathtub tom Replies: 4
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New Mon 26 Jul 10 23:14 
 Racing fuels - bathtub tom
At the Silverstone classic, I noticed behind the pits a supplier of R5S and R6S racing fuels that competitors were topping up with.

The usual search engines can't enlighten me.

Anyone here know the difference between these formulations and the stuff we buy at Tesco's?
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New Mon 26 Jul 10 23:28 
 Racing fuels - Dave_
We noticed the Gulf petrol station advertising "Unleaded 102", didn't wander close enough to investigate fully though.
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New Tue 27 Jul 10 10:42 
 Racing fuels - NortonES2
Apparently the ingredients have to be the same as pump fuel, but they are allowed to play with the proportions, whilst retaining octane within bounds, I believe. A link: www.f1technical.net/articles/19 BTW, anyone know what "insurates", shown in th pie charts, actually are?
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New Thu 29 Jul 10 09:32 
 Racing fuels - Skoda
There's something about using "race fuel" in my manual and it will trip the check engine light. A quick google just there says something to do with lambda values. Wonder if it would damage the cat too then.
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New Thu 29 Jul 10 16:14 
 Racing fuels - Bigtee
community.evo.co.uk/forums/thread.cfm?threadID=47347

100 octane is also fitted into a spitfire Rolls royce merlin and there fast arnt they!
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