71 Cutlass

Anyone ever pour in a few ounces of toluene into a full tank? Curious to know what experience someone has had with trying this out.

J-(Chicago)

I have done it before, but make sure you need it.
It's pretty much a straight octane boost.

In my opinion, a stock low compression 71' Olds motor would run better on 87 octane than 100 octane.

Too much will accelerate your cylinder bore wear. They will become out of round much faster.

Run to Rund

toluene, please. C6H5CH3
You shouldn't need an octane boost in a 71-2 Olds. If you add toluene or something else, make sure it is very well mixed with the rest of the fuel.

J-(Chicago)

I did this very same thing when gasoline got up to $5 per gallon. I said to hell with this.
I pulled the big block, and put in a $100 307 olds motor. Then I ran it on Toluene and gAs mix for the year. I could get toluene free from my work. We used Toluene to strip glue from plastic laminates, and would then dispose of the contaminated stuff.
I didn't mind glue residue and extreme cylinder wear on a $100 307.
It lasted me the whole year running it like that, but when I pulled the heads, it wasn't very pretty. 1/4" ridge in the bores. Some was regular wear of course, but by the time i pulled it, it was blowing oil spray out of the tail pipe.

In retrospect, I should have been mixing 2 cycle oil in it for more lubrication.

71 Cutlass

My compression ratio is 10.5:1 and am using forged flat top pistons by Diamond in my 71 350. How many ounces of toluene should be added to a full tank, and perhaps some Marvel Mystery oil for extra lubrication will help?

J-(Chicago)

As far as a good mix ratio, I am not much help. I didn't really have a set formula. Just kind of dumped it in as it became available.
As far as marvel mystery oil goes, I'm not sure that it is formulated to be burned like 2 cycle oil is.
We all know what happens when you burn 4 cycle oil. It becomes a sticky, sludgy, carbon caked mess.

radioburningchrome

Try using acetone. Its an organic solvent.

I add 1 ounce per 5 gallons.

Supposedly it helps vaporize fuel.

http://www.pureenergysystems.com/new...00069_Acetone/

Railguy

Isn't caster oil a good lubricant to add?

jerseyjoe

I have been adding an ounce of MMO per gallon of xylene to my buick for years without issue. Usually run 20% mix.

"Basic way to make a home brewed, near 100 octane unleaded race gas. Recipe is 1 gallon of "booster" (xylene or toluene) for every 3 gallons of pump gas, plus an ounce or two of Marvel Mystery."

Toluene based: [114 + (93 x 3)] / 4 = 98.25 octane blend

Xylene based: [117 + (93 x 3)] / 4 = 99 octane blend

FORMULA 1
Toulene
R+M/2...114
Mixtures with 92 Octane Premium
10%...94.2 Octane
20%...96.4 Octane
30%...98.6 Octane
Notes: Common ingredient in Octane Boosters in a can. 12-16 ounces will only raise octane 2-3 *points*, I.e. from 92 to 92.3.

FORMULA 2
Xylene
R+M/2...117
Mixtures with 92 Octane Premium
10%...94.5 Octane
20%...97.0 Octane
30%...99.5 Octane
Notes: Similar to Toulene. 12-16 ounces will only raise octane 2-3 *points*, I.e. from 92 to 92.3. Usually mixed with Toulene and advertised as *race formula*.

Railguy

Where do you buy toulene or xylene?Isn't toulene the main ingredient in lacquer thinner?Which is about $18-$19 a gal.?Also isn't transmission fluid a good lubricant to add?
railguy

71 Cutlass

Called yesterday---Sherwin Williams Paint Store and a True Value Hardware Store... Toluene was $18.99 a gallon. Xylene was a bit higher. You know it's expensive when it's double the price of race gas. Wish there was a more $$ realistic way to do it every week.

dc2x4drvr

This what I use to boost octane. http://www.kemcooil.com/products.php?cId=4

Railguy

This what I use to boost octane. http://www.kemcooil.com/products.php?cId=4


The link says it will raise octane 2-16 points.Then it says it will turn 93 octane into 101 octane thats 80 points.Never mind the fact that 2-16 is pretty good spread but 80 is way over that.
railguy

71 Cutlass

How much of the Kemcooil do you add to 15 gallons of 93 octane gas? One quart? less/more? I would be doing this quite often...seems like all choices are expensive other than the acetone...Supposedly acetone increases mileage annd also adds some power. Anyone ever try acetone? Perhaps just adding tetraethyl lead?

jerseyjoe

I bought a 5 gallon container from local MAB store for $35 a year or so ago. I have not heard of the Kemcooil before. Curious on how much is needed as well. There is another product out there by Torco that works as well. At the time the xylene was less expensive.

http://torcoracefuel.net/pro-accelerator.html

I believe you can use trans fluid in place of the MMO if you want.

stan 65 cutlass

why dont you buy race fuel, sounds cheaper?

dc2x4drvr

I use about 1/2 Qt. per tank to keep my motor from detonating when the timing is set at 36* at the track. Around town I just back my timing down. Race fuel is $8/gal. and I've tried various blends using Rockett 100, but their chart says you need 3 gals. of their stuff to bump 10 gals. of 93 octane up to around 94. my motor is a true 10:1 and I never thought I'd have any detonation.

Run to Rund

I recently bought Rockett 111 leaded in Vegas for $6.97/gal. It has about 4 g lead per gallon. www.rockettbrand.com

Railguy

There is another product out there by Torco that works as well.


• Can raise the Octane of your fuel as high as 105.







Then the chart says that 6.4 oz/gal will raise octane to 107?
WTF Am I the only one that thinks this sounds screwy.I mean there own words it "can" Raise the octane "as high as" ???? I've got a bridge I'll sell you.
railguy

coltsneckbob

And less work and probably safer for you health wise. I buy race fuel (leaded) at Raceway Park which is about 8 miles or so from here. It is certainly not cheap. The 105 octane was $9/Gal last summer and the 110 was $11, and the 116 octane was $15. At those prices however I would assume if your car is a DD (or if you at least put a few thou miles on it in summer) that can get pretty expensive - even if you mix it down with street fuel.

I will say however that with the 116 octane at Raceway you get a very nice metal gas can to keep. The can probably would go for $30 at home depot.

radioburningchrome

I learned about acetone when my 2005 F150 5.4L XLT with 145k miles started to develop massive hesitation. Adding 3 ounces per 10 gallons helps.

Put 3oz per 10 gallons in the 65 D88 and the slight miss from oxygenated winter fuel is gone.

I have a gallon of xylene I have not tried yet.