[NXS]

Is there a cheap and simply way to determine octane if I was to mix my own gas using toulene or xylene?

FORMULA 1
Toulene
R+M/2...114
Cost...$2.50/gal
Mixtures with 92 Octane Premium
10%...94.2 Octane
20%...96.4 Octane
30%...98.6 Octane

FORMULA 2(RACE!!!)
Xylene
R+M/2...117
Cost...$2.75/gal
Mixtures with 92 Octane Premium
10%...94.5 Octane
20%...97.0 Octane
30%...99.5 Octane

A small amout of lube was recommended. Suggested was trans fluid or Marvel Mystery oil.
I'm thinking that Cherry Lube for alcohol would be nice!

 

[killerformula]

good info, repost though.

I've used a couple of those. NOt sure if they really made that much of a difference-

K

 

[Full Throttle]

I tried the toulene method a couple of years ago. I already had some plastic octane booster bottles saved up and I mixed up the toulene formula in a gal. container and then divided it out to the plastic bottles. I didnt really notice any difference when I used it and overnight the other plastic bottles I had mixed turned to rubber bottles. I thinks they would have been liquid bottles in one more day. I have a plastic fuel cell in my car and dont know if it would have damaged it in time. I can also think of some other plastic seals in the fuel system.

Kevin

 

[NXS]

Gasoline comes from the pump with toulene and trace amounts of xylene in it....but I'll sure make a note of that!

I think that the xylene is the way to go, but only for boost applications. It has a very high octane rating.

 

[1BAD80]

This has been discussed on this Forum more than once.
Looks like you done some coping for your figures to post from this one.
http://hotrodders.com/showthread.phps=&threadid=39141&highlight=toulene
Try doing a Thread search on Octane to get more than a few posting's on the same subject.
Like Full Throttle said what it does to plastic, I tried it also and had to clean the dichromating out of the acc. pump as it removed it from the inside of the float bowl.
Here is a site that should explain it for you.
http://chemistry.about.com/gi/dynamic/offsite.htm?site=http://www.howstuffworks.com/question90.htm

 

[NXS]

Yea, I copied. I asked the question and THEN did a search. I found it on a T-type/GN forum.

You guys are talking about toulene doing this or xylene or both?

Thanks for the experience...and saving me from it!

 

[Full Throttle]

I didn't try the xylene after the problem with the toelene. When I saw the formula I assumed there was nothing wrong with either of them.
Kevin