So far yesterday I dumped 1 quart toluene into a full tank of gas. I'm trying just to see if my plugs will burn a little cleaner and clean the fuel jets and valves. I have drums of the Toluene, Xylene and the Isopropyl Alcohol that we use here at work. I'll report back later on the results.

Here is just one of the links for the info I have found.

http://www.vtr.org/maintain/gasoline-octane.html

 

You'll have to do at least 1 gallon in order to notice anything on a full tank
and if you are running aggressive fuel maps.


(93oct x ___ gallons + 114oct x ____gallons)/total gallons = octane

 

Why would using a higher octane fuel (which burns less-well) clean your sparkplugs?

Wouldn't it booger them up MORE?

Do you have any websites we can read that explain this a little bit?

The cartalk guys say "Actually, we'll be glad to repeat the message. High-octane gasoline is of absolutely no benefit to the vast majority of cars on the road. You should only use high-octane fuel if your owner's manual specifically recommends it."

 

Yes, it doesn't make sense using the "T" stuff in T-N-T. Heck, you might even blow up your car. Just kidding.

 

my understanding is that the mcs ecu will retard the timing, giving more hp, for up to 93 octane u.s.

(please don't go way off topic, but i think that the hp claims made by the plasma booster may have come from retarding the timing. i thought one of the articles about the inventor said he was shown the door at GM with the comment "you're just retarding the timing....")

 

I thought I read somewhere that the factory ECU can accept up to 98 octane? If the ECU retards timing, you'll feel the limitation of the motor while it tries to compensate itself from a lean condition. If you continue to run in that condition, the car might enter limp mode.

Usually that's when you want to add some toulene and increase octane
level if you're sure that everything else on the car is running properly.

Especially in IL where we run wintergas (oxygenated gas) increased
octane on turbo cars and some supercharged cars running aggressive
fuel maps can benefit greatly.

If you're running factory maps on factory boost, the octane boost will
not net you much...if at all anything.