[Biturbos4] Can I run 105 octane in my stock 2001 S4?

[cgvogel at comcast.net]

Don't use leaded gas.  You will destroy your catalytic converters.

-------------- Original message -------------- 
From: docwyte at comcast.net 

> You can run it, but it'd be a huge waste of money. There's no reason to run 
> that kind of octane gas unless you have the programming to support it. 
> 
> -------------- Original message -------------- 
> From: "bob rotax" 
> 
> > 
> > Hi guys, I am a new S4 owner, maybe you can answer this for me. I have 
> > searched all over Vermont and cannot find 100-octane gas. If you guys know 
> > of any places please let me know. There is a place right down the road that 
> > sells 105 unleaded. 
> > Can I run 105 octane in my stock 2001 S4? I think it is a pre 01.5 
> > because of the early style badges but I do have an esp button. I have not 
> > had the chance to look at the ecu or shifter yet. I am on the East Coast and 
> > have 93 readily available. 
> > I am thinking of purchasing a chip soon and am starting my research. I 
> > plan on getting 93/100 software. I was told I can run the 105 with chip in 
> > 100 race mode. Can I run 105 stock now? Will this do anything other than 
> > keep the knock sensors form activating early? Is there any significant hp 
> > gain? 
> > There is also 100 Avgas and 110 race fuel available locally but it is 
> > leaded and I hear that this is very bad for the oxygen sensors? 
> > Anyone have BTDT or experience with chips and can recommend one that 
> > you feel worked well? I am leaning toward APR but am considering MTM, AWE, 
> > Achtunig, etc... 
> > Thanks for the help. -Bob 
> > 
> > 
> > 
> > 
> > -Bob Rotax 
> > 5592 RT. #7 
> > Ferrisburg, Vermont 
> > 05456 
> > rotax017 at hotmail.com 
> > www.myspace.com/rotax017 
> > 802-877-6769 
> > 802-922-4778 
> > 
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