Octane Boosters?

[QuattroRS3]

I know a lot of you guys are fortunate enough to have E85 by you; however in CT unless I'm buying racing fuel then the best thing around here is 93 Octane. Therefore just wondering if anyone has tried or considered an Octane booster for the RS3? I've never used any octane booster in my life; therefore I'm not exactly sure if it would even make much of a difference or not like E85 does to this car.. I almost pulled the plug on the Lucas Oil 10026 octane booster today then saw the part where it states for 4 stroke engines only and was like okay maybe not, lol.. so anyone on here try it or have some insight regarding possibly trying octane booster on this car?

[S3DUDE]

I read a few articles and they all work. You have to buy them with the higher full points increases, some are more concentrated than others and that is why I was saying the full points. If you decide to get the octane booster then the way to go is buying them by boxes instead of individual. You can also buy gallons of race fuel, they come to your house in barrels, that is another option.

[VinnysS4]

Xylene. FTW

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[shivaswrath]

I know a lot of you guys are fortunate enough to have E85 by you; however in CT unless I'm buying racing fuel then the best thing around here is 93 Octane. Therefore just wondering if anyone has tried or considered an Octane booster for the RS3? I've never used any octane booster in my life; therefore I'm not exactly sure if it would even make much of a difference or not like E85 does to this car.. I almost pulled the plug on the Lucas Oil 10026 octane booster today then saw the part where it states for 4 stroke engines only and was like okay maybe not, lol.. so anyone on here try it or have some insight regarding possibly trying octane booster on this car?

I use Boostane on the track only...I'm in NJ so closest 110 octane is in Jersey City, and they take cash only so I rarely go there.


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[SlowSedans]

You lost me at 4 stroke engines.....



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The DAZA is a 4 stroke engine.

You should never use over the counter octane "boosters" most are garbage. The ones that arent garbage still dont work.

[SlowSedans]

Xylene. FTW

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No, xylene is terrible in any substantial volume added into fuel beyond what's already present.

Toluene is what you can use to make your own high density fuel with 91 - 93 as a base.

This shit is concerning where people are giving straight up bad info that a simple google search will yield a lot of good info.

[SlowSedans]

I read a few articles and they all work. You have to buy them with the higher full points increases, some are more concentrated than others and that is why I was saying the full points. If you decide to get the octane booster then the way to go is buying them by boxes instead of individual. You can also buy gallons of race fuel, they come to your house in barrels, that is another option.

Those "articles" are generally paid...

Most octane boosters you find at a parts store contain random stuff like diesel.

There are a select few additives available intended to be blended to make race fuel. They arent sold at parts stores, generally. They also go on and off the market.

[VinnysS4]

No, xylene is terrible in any substantial volume added into fuel beyond what's already present.

Toluene is what you can use to make your own high density fuel with 91 - 93 as a base.

This shit is concerning where people are giving straight up bad info that a simple google search will yield a lot of good info.

Well maybe you should do some more research before condemning it. Yea toulene is what octane boosters are made of. Xylene shouldnt be dumped in and ran as is. It does not contain conditioners or lubrication. This is where the research comes in.. but you already did that.
Both xylene and toulene have been used for years as octane boosters.


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[SlowSedans]

Well maybe you should do some more research before condemning it. Yea toulene is what octane boosters are made of. Xylene shouldnt be dumped in and ran as is. It does not contain conditioners or lubrication. This is where the research comes in.. but you already did that.
Both xylene and toulene have been used for years as octane boosters.


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I'm not going to argue this, you go ahead and buy xylene and mix it into your fuel. You have no idea the chemistry behind any of this but it's clear you dont want to learn either.

[Nitin]

Torco Accelerator

[RS3TP]

Torco Accelerator

Torco works for sure. I have put that in my 1970 Chevelle 582 cu-in where the 94 pump gas was just not enough. It works great ..

[Bowser330]

Torco and boostane experience on other turbo platforms. They both work well for repeated use to bump 91 to 93 or for occasional use to bump 91 to 100+.

Occasionally because consistently using large amounts of mmt, the active ingredient in the concentrate that improves the octane, can coat injectors, plugs, and exhaust tips with an orange film. Not only is the film noticeable by Audi it also has been reported to cause the need to replace plugs and injectors.

Just don’t over do it too many times in a row, and consider using e85 occasionally to clean things up inside.


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[SlowSedans]

Torch is one of the few that work and it is definitely a majorly different product that the general octane boosters.

[Bowser330]

Torch is one of the few that work and it is definitely a majorly different product that the general octane boosters.

This is true, torco and boostane are MUCH different than your run of the mill autozone octane booster. Be skeptical of any booster not using mmt and then you have to be concerned with how much they are using. Start with torco and or boostane.

[Jeff_Jeske]

I don't use octane boosters.... because every legit track will have 100 unleaded available or there will be a local fuel source where you can buy race gas to cut with pump gas.

That being said here is a fairly legit video that discusses the topic further: https://www.youtube.com/watch?v=k_QDnt6M93M

As for running xylene... I wouldn't run it in my audi but I was on a first name basis with the Sherman Williams checkout clerk back when I had a DSM ha ha! I ran up to a 30% mixture and it worked wonders.

[Ross_T_Boss]

Boostane is the most convincing to me, although I may repeat their youtube test myself against a couple of others (the one where they add to the gasoline and leave to see if it falls out of solution) as it seems pretty extreme for the others to separate so badly.

MMT / organic metallics reduce pre-ignition during the burn, very effective in tiny quantities, but non-linear so the more you add the more is needed to keep the octane rising. You can't just "double up". Also the effect is reduced with aromatics, so your base stock 85 may well give that 8-10 octane improvement their marketing material states but that could be cut in half on a 93 that already contains 18ppm MMT or high aromatic content to achieve it. Best to take plenty of logs to 'confirm' the claims and then again if you start using a different fuel supplier as you may need more for the same effect.

The ghetto race gas fails you'll read about are due to other additives (contaminants) rather than the fuel element added, it's crazy seeing people applying middle school chemistry with confidence and authority. If it came from a hardware store I'd be very wary, and I certainly wouldn't be mixing additives unless I knew what it was and how it would react (and tested outside the tank first).

[auviper]

IMO - It's not worth it. Just tune on 93 and use a octane booster for track days as a safety margin for heat etc if race fuels are not available. Or a much better idea is to just move somewhere with e85 ;) Our local E85 station is strategically located between my place and my work lol

[Bowser330]

IMO - It's not worth it. Just tune on 93 and use a octane booster for track days as a safety margin for heat etc if race fuels are not available. Or a much better idea is to just move somewhere with e85 ;) Our local E85 station is strategically located between my place and my work lol

Or buy a bunch of fuel containers and get 3-4 tanks worth in advance to cut down the e85-pilgrimage to once a month. I know people who do that.