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-   -   High Octane Gas (https://www.audiworld.com/forums/rs4-b7-platform-discussion-121/high-octane-gas-2710215/)

2audis4u 02-08-2007 05:37 PM

High Octane Gas
 
Anyone know where one can purchase high octane gas (94 or better) in the southern ct area?

Bob W. 02-08-2007 07:22 PM

do a search for 'race gas' in your area....some speed shops sell 100 and 104 octane.
 
plan on spending $5/gallon or more.

woldebeest 02-08-2007 10:09 PM

I've always been curious about using race gas..
 
is there anything that I have to worry about when using high octane gas in this engine?

Audis or VWs 4Life 02-09-2007 03:47 AM

wont do jack for you unless you have a chip that can take advantage of it...
 
stock ecu will run cherry but its programming is already optimized for the 91/93 octane world.

With a chip and switching it into a high octane mode, 100, 104 program it will run a software optimization for the better fuel.

bhvrdr 02-09-2007 04:35 AM

Use a 104 octane or below fuel which should also specify it is unleaded and you are fine.

bhvrdr 02-09-2007 04:36 AM

Definitely not as much to gain but the stock ECU will pull back 6 degrees of timing or so...
 
under hard driving so the added octane will benefit, just not as much as if you had a race program.

Bob W. 02-09-2007 06:42 AM

as long as it's unleaded, no prob.
 
having said that, there wouldn't be much of a benefit to using race gas without also having the ECU tuning to exploit the higher octane.

woldebeest 02-09-2007 07:45 AM

Thanks...at least now I won't be tempted until I get my car chipped...

Silver Fun 02-09-2007 03:30 PM

Buyer beware it also costs about $5.50 per gallon.


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