Jakpro1

I guess the other race gas I had in it must have been bad (car had trouble starting)

Now, throttle response seems tighter and car has no trouble starting.

Hopefully no O2 sensor trouble....otherwise, this is really nice. Love that race gas sweet smell....mmmmmm.

It is a pain in the can, as I gotta go to special shop and schlep it home in cans.

Can't wait to go to the track.

onesixeight

I've tried 76 100 "Cool Blue" a few times. As with Jakpro1, the first thing I noticed is the snappier throttle response. Other than that, I don't think it did much for my stock ECU E55.

No error codes or messages...

$6.04/gallon in Hawaii.

Marcus Frost

I've run 100 octane in my stock ECU W211 E55 and the ECU does notice it and does adjust timing based on it. One of these days when I have some time I'll post my findings of all my datalogging. However, I wouldn't exactly say it was "loving it" - there was a bit more timing at full throttle but the car has trouble starting with it due to it's ignition map not taking into account octane like the normal fuel map does (100 octane is harder to burn so the car has trouble starting with it).

With your Kleeman setup it may like it more. I can't recall off the top of my head if VP 103 is leaded or not, if it is not leaded then don't worry about any O2 sensor issues. If it is leaded, do not make a habit out of it, especially with cats. It will kill your O2s AND your cats.

-m

Vetluver

Has anyone got info regarding Octane boosters like 104+. I used it in my

Vette when it was brand new to reduce knock. Worked like a charm. After

the car got about 5000 miles on it the timing chain broke in and I had no

more problems. Do you think it might work? It's way cheaper than race gas.

Last time I filled up with 105 octane it was $3.50 /gal.

MBE55AMG

I'd be bankrupt in Hawaii...

Jakpro1

Hey Marcus,

I have to ask. The station I found the old gas at , had this "pops" working at it that was a real jerk. After he gave me about 10 gallons right into the car, he mumbled that he couldn't remember if it was leaded or unleaded. Anyway, called again today and spoke to owner of station, and it WAS leaded...that friggin idiot. Anyway, I heard that you can kill Cats even with a little leaded. Any way to tell if you did damage to Cats. Would it hurt horsepower.....or is it just a "never pass emissions again" kinda thing.

No valve or engine damage thank God....but was wondering bout Cats.

Thanks for any info.

BTW..I did everything but ask for a lie detector on whether VP 103 is unleaded....they got ticked, but I don't give a rat....ain't their 80$K car.

Vetluver

Did the gas come directly from a standard gas pump? Leaded pumps used to have a larger caliber spigot than non leaded. Gas inlet is smaller in newer cars so that you couldn't accidentally put it in newer cars requiring non leaded gas. It still might not have lead in it.

Jakpro1

Not sure what they did. It literally was one of those olllllddd style stations with the dials that flipped instead of digital. I should have known better. There are only a few stations in the city that sell race gas, so I just figured what the heck..this is where you get it....at Grandpa Jenkins gas station.

I can't imagine them selling leaded in that pump. Most cars at the track today are pretty new and the super race cars wouldn't run 100 anyway....I bet they are full of crap. Bet I was the only customer for race gas in 5 years....just probably bad gas.

The new place that sells VP really knew there stuff and actually gave me crap for going to the fosil's station....ya live a learn I guess. Thinking about getting a 55 gallon drum for fun....ya think it would be a waste?

Vetluver

At $240 a tank that might be the highest gas prices on the face of the earth.

Kind of reminds me of the rare bottle of wine I drank last time I was in Chicago on business. I enjoyed it while I was trashed but when I woke up the next morning I asked myself what the H*** I was thinking about. I don't even remember how good it was.

Probably not worth the trouble.

vraa

Have you guys heard of Toulene?

http://patriot.net/~jonroq/Tech/octane2.html

vrus

If you want an easy way to increase your octane just drop some methanol into your gas tank. It serves as an octane booster and gas line antifreeze at the same time. Also cheaper than buying "Racing fuel".

vraa

Is there a way to calculate the octane rating from the methanol method?

vrus

Your suggestion of Tuolene was better actually.. I did a little research... Methanol is mildly corrosive if used in high ratios.. It is only recommended to dilute 10% methanol with your gas and the best octane it provides is 94.3. Your Toulene suggestion is the best alternative because it can provide a 98.6 octane rating and is still alot cheaper than race fuel. (This is assuming you are mixing with a 92 octane fuel)

- Toulene provides the equivalent of 110 octane rating and costs approx $2.50/gallon
- Methanol provides the equivalent of 101 octane rating and costs approx $0.90/gallon

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
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. Often costs $3-5 for 12-16 ounces, when it can be purchased for less than $3/gal at chemical supply houses or paint stores.

FORMULA 2: Methanol
Methanol or Ethanol
R+M/2...101
Cost...$0.60 - $1.75/gal
Mixtures with 92 Octane Premium
10%...94.3 Octane (Methanol)
10%...94.7 Octane (Ethanol)
20%...Not Recommended
Notes: Methanol is wood alcohol. Ethanol is grain alcohol and found in Gasohol in 10% ratios. Both alcohols are mildly corrosive and will eat gas tank linings, rubber and aluminum if used in excessive ratios. Main ingredient in "Gas Dryers", combines with water.

vraa

128 ounces in a gallon. So we could get from 5$ of Toulene, five octanes higher?

92 --> 97 octane.

But then that's 1/22th (for me anyways, X5) of your gasoline is Toulene. That's 4.5% so I can' still go some more

I can throw in another gallon in so I get 102 octane for 10$ and hit around 9% of my tank is Toulene.

I have 93 octane though so it'd be 103. So my fillup would cost instead of $50, it would be $52.

Am I correct in these conclusions?

Duane

I Have been going to VP race Fuels in Fort Lauderdale for years for my 996 Turbo. I pick up 8 to 10 HP with the race fuel. Once I do Kleemann I will try running the 103 in the e55.

Lady Wolf

You can't leave me like that. Forget the gas, tell me about the wine!
Kim :v

Jakpro1

It's amazing how ignorant some people are about AMG. The quote from them about my car pushing roughly 600hp at the crank.....IMPOSSIBLE

Like only American cars can make that much hp.

Then again, I am still trying to convince my brother (all American fanatic) that my car has aluminum block/heads AND pistons with Magnesium intake. His response, "only the ZL1 was ever made all aluminum". Wish we were kids again, I would just get him in a headlock and fight him in the backyard again.

Here is link to watch Beast Engine Building

Vetluver

LW, as I recall it was Robert Mondavi Cabernet Savignon Napa Valley Reserve 1999. It's been rated 94 and is very nice but we were at a Don Shula Steak House and they were very proud of their better wines. I've got a bunch of wines that I like better and are way cheaper. Don't get me started on this subject......I like it a lot :p .......... but not as much as cars.