Seeing as how you are in socal, down the street from my parents house in West Covina, is a Union 76 station that sells 101 octane at the pump. Last week it was $8.99 a gallon. Address is Citrus exit off the Freeway 10, at the off/on ramp.
Dont waist your money on octane boosters sold in stores, The better deal is take some gas cans to a small airport and buy av gas 100 I buy leaded av gas 100 octane and mix with a little Marvel mystery oil. Works great , burns clean and also smells awesome like expensive race fuel.
For those of us in the frozen northland, you can always say you're using the avgas in your snowthrower, lawn mower/tractor or whatever...
And for an entirely new and novel approach you could tell them your using it in your AIRPLANE!!!!! Frank
Well that's a buck a gallon less than it is around here....when you can get it... Last check 106 octane was 9.99
Test results of all the major makers of octane boosters show the the LUCAS brand works the best. I tried it in my "A" coupe and it did help with spark-knocking on hot summer days. I have an 11:00 to 1 pistons with 72 cc heads so it is probably around 10:00 to 1 compression in my 355 sbc.
Dollar store in Ca. Friend runs in his hardtop. I put it in my 48 Ford with the Cad engine with 11 1/2 compression and was able to put more advance in the dist. Runs like a new engine.
av gas is made for low rpm motors at high al***ude. only real benefit is it smells good. true cam2 is blended different, yes it is 9 bucks a gallon but you dont have to run it straight to gain benefits. one of the real pluses is you can store your toy for a looonngg time before 110 octane fuel goes south. here in des moine the local airport you have to have a n number off of a plane to buy it
I buy at a paint store tolune pure 120 octane only 1 point of on specific gravity from gas. I use one gallon to 15 or so gal 93..Because of the sniffers or tweekers you will need to use a commerical name.. They dont care they just need a address.. Use something like Metro Race team ................................................................................................................As far as airplane fuel it is blended to run at 2 to 5 thousand ft.. When I but airplane LL 100 I use a tail number that way the airport is not liable ; most tail numbers are N with 3 or 4 digets and a letter after. like N 368 G or N 1234 H which is a rotary wing aircraft. I was told the H that means helicopter..
A simple booster is Methel Hydrate and in the old days a couple of mothballs .Sounds like BS but we used in a 11.5 to 1 302 Chev race engine in the early 80's and it worked . Rob
Something easier than mothballs.Naptha gas[called white gas up here]campstove fuel.1 quart per 8 gals of 92 octane gas.
How about E-85? The octane rating is from 104 - 108. It drops intake temperature which works great for turbo guys. I use it in my OT Sonoma. The gas mileage ****s as I lost about 1/3 of my mpg, from 17 down to 12.
Toluene is a good choice... Xylene works as well... I used both in a Chevy 427 with 11:1, using a Qt per 10 gals of 92 octane unleaded if I remember correctly... 100LL Av-Gas is going to be the most cost effective way to get high octane fuel... Run it 100% or blend as needed. For those of you in the Monterey Bay Area, today it was reported to be $5.45 @ the Watsonville Airport 24hr self serve fuel island, call one of your pilot buddies to get the gate code to get in... ...and where are you guys getting these stories about Av-Gas? Very simply, Av-Gas is a fuel blended to a specific standard known as ASTM D910 http://www.aviation-fuel.com/pdfs/avgas100llspecsastmd910_2011.pdf As far as octane, it will have at least: 99.6 MON, 100 Lean, and 130 Rich Octane. 100 octane is 100 octane. No more, no less, and just because you run it in a auto engine won't change that fact.
As far as octane boosters from a retail store, I'd say none of them are really worth any octane. I'd rather buy a gallon of real race fuel for the same price as a can of one of those "boosters". I read on the back of one brand of booster that claimed to be worth 10 "points", but if you kept reading 1 "point" was only a tenth of a octane number. So for your 7.99 you could go from 91 to a whopping 92 octane. I'd have a stroke if I had to pay what some of you say you're paying for race fuel. We sell 110 octane leaded race fuel for $6.50/gal where I work.
Thank you ropeseals for your cognizant post on 100ll. Many of us have used it for many years with great results both from a performance and cost effective alternative to price gouging at the race tracks.
The Jalopy Journal
