Here in Nevada we have the same problem that you evo owners in cali are having. 91 octane is the best pump gas you can get around here and its about 1.70 per gallon. You can buy race gas at some places but its outrageously expensive. I was thinking about just adding a gallon of one of these products to my tank to get a ratio between 93-94 octane. Are these things safe to put in your evo? Do any of you use these either of these? some would be nice!!
thank you

 

huhu. 1.70! I paid $2.09 for 91 today! Good thing I was filling up the old Mini and not the Evo! The Mini only holds 5 gallons.

There are a bunch of threads in here regarding toluene and xylene. But the concensus is that, if used in moderation, it's a good safe way to add octane.

SC~

 

damn 1.70 and 2.09!!WOW!! I can get 95 octane at the pump for
1.75 at the moment( been down as low as 1.59), 1.69 for 93, and 110 at the pump for 3.99 a gallon.

 

well you live in the dirty south so what do you expect?!?!

 

porsche guys have been using this method for years....if its good for them id say its good for us

 

Toluene is a leading component in gasoline. It has a high octane rating, and was used in 84% concentration in the old turbo McLaren Honda F1 car that produced 1000hp/L.

The only downside to toluene addition is poor cold performance (F1 cars heated the fuel to 70C first).

ferb!

 

http://www.clayeye.com/fuelcomputer.xls

There you go

That will tell you how to mix it.

 

I don't know how many gallons of Toluene went through my eclipse but it loved it. I would mix it around 30% on track days.

 

hey could someone post that excel spreadsheed or the info or calculate it out for me because I don't have excel on my pc

 

Here in NorCal, I just paid $2.47/gallon for 91 at a 76 Station. I've seen prices as high as $2.79 for super unleaded around here in Silicon Valley. I wish I could buy gas for $2.09 <sigh>.

 

Mitsuorder:

Here ya go:

Take the octane rating of the gas you're pumping (eg. 91 octane) and multiply it by the number of gallons pumped, giving the total octane from pump gas. Take the toluene octane (114) or the xylene octane (117) and multiply it by the number of gallons your going to add, giving you the boost octane number. Add octane pump gas total to boost octane total and divivde by total number of gallons, gives you the new octane rating per gallon.

e.g. ((11 gallons of 91 pump gas = 1001) + (1 gallon of xylene = 117)) / 12 = 93.16 octane.

Hope this helps,

- Nellie

 

Hey Nellie thank you very much, I purchased one gallon of Crown brand xylene today and am going to mix it with a tank of 93, should have me at 94.7 octane.

 

Where exactly do you guys by this stuff from? And what is it used for?

thanks

 

I've used toluene (octane 114) and xylene (octane 117) since I got my evo. works great and makes a noticeable difference. much smoother pull to redline. gasoline companies actually use toluene to increase the octane of gas. I get mine at Sherman Williams (paint store). Its used as a solvent. Problem is that drug dealers use toluene in their crack labs and so federal regulaters watch out for purchases in large quantities. the sherman william's guys made me open an account with them (name, address, driver's license # etc) in case the feds start sniffing around. Totally unnecessary in my opinion since I only buy 5-7 gallons per month, but I guess it covers their butts. Opening the account with them also gets me a 20% discount with each purchase so it works out well for them and me.

 

What is it used for?
That depends on the application..