mggray87

i cant believe there is no 93 octane stations near brentwood/antioch area? or am i missing it. amazing not one.

napacruzerc5

About 20 years ago California said 91 octane the best you can get and all CA gas producers agreed. Don't know anyone selling more than 91 octane except perhaps "race gas" retailers.

yogiboobuck

Gased up at a 76 a few months ago on Woodside Rd in Redwood city. They had 100 Octane , I think it was about $8 gal

CrossedUp

You can get it in Stockton too.

Josh_C7Z

Not sure if it helps, but there's a "Sunol Super Stop" off 680 between Fremont and Pleasanton that has 94/96/98/100 (or 101?) octane fuel. It's not exactly close to Brentwood but for me it's a really convenient stop when I travel between Santa Clara and Livermore...

mountainears

Torco octane boost. There are very few places in CA that have higher than 91. Unless you happen to love near one of those stations forget about getting it regularly.

TCorzett

Shell station on Schulte Rd in Tracy (off 580 near Mountain House Pkwy) has Trick Racing Gasoline (100 octane I believe) on pump #2. Not cheap (~$10/gal the last I checked).

Finding 93 Octane in most western states is difficult. Oregon has 92, but New Mexico is only 90 (altitude helps though). On cross country trips most of the time I need to get to Iowa to consistently get 93.

lt1z

There are 100 octane stations around sparingly as well as a few who will offer 96 as a blend between 91 and 100 at stations that offer both. However if it is a street car it is best to stick with tuning on 91 octane for availability throughout then state. Plenty of cars making good power on 91 with the right setup.

LT4_CE

You can mix the 100 octane others have mentioned with 91 to get to your desired 93 octane. I've not done it, but I've read here on the Forum that it works just fine.

mggray87

ya I'm gonna have to keep 91. Nothing near brentwood. If I have to commute just to get gas I'm out. Lol I already commute to work to san francisco every day. In my daily driver. Haha thanks guys

convas

Years ago when my 86 was still on the road I always carried a couple of bottles of octane booster in case I could not find 98 octane which was not everywhere then, with 91 it would ping like crazy under load.

lostsoul

There is a Kwik serve in lodi (s. hutchins and 12) next to Golden Ox that has a drum of 100 they sell for $10/gal.. I go there with my 5 gal jug and mix half of it with reg gas to get 93 or close to it. My tune is set for 91 but its cheap insurance. It would be nice to find a pump maybe at a better price. Gas is way down yet 100 still costs the same. There is suppose to be another place somewhere down charter in Stockton, but not sure. I think there is suppose to be another damn gas tax increase. I cant believe people here voted for that. I'm lose all faith in people these days =-/

Red86Cfour

I think a lot of voters voted no, which was actually a yes keep the tax vote.

LS WON

I cant believe people here voted for that. I'm lose all faith in people these days =-/[/QUOTE]

That is here in the Republik of Kalifornia aka Commiefornicate, State of Chaos, Corruptfornia.
I can't even get a car polish that I used since 1979 for a few years now living here because it doesn't meet Commiefornicate VOX specs. Same thing with Cabot wood protectent where they had to change the formula so now it doesn't preserve my fence like the old formula did.

LS WON

You can use BARF aka BART and keep the miles and Corvette/daily driver at home.

GTX JOHN

I mix 91 and 100 whenever I raced my Z06s and will do so with my C8 if the Drag Strip ever opens again in
Nevada while I am still driving!

dgarzoli

Renner fuel station in Cloverdale has 92 and 110 at the pump.

UsernameEJB

Adding 10% ethanol to gasoline will raise the octane by 3-4 points So if the N91 is truly 91 when it is rated it will be 94-95 once the ethanol is added. The higher octane will be the result of the gasoline’s aromatic content. Also if you are worried about vapor pressure then adding up to 4% toluene which has an octane rating of 120 will lower your vapor pressure. Be careful too much toluene with its high aromatic content can soften gaskets/o rings I have run 7% toluene with 91e10 to up my octane level in my 1967 c10 with a high compression SBC 383 and have only noticed my bowl gaskets get a little softer than normal but still no leakage

fyi i I work for refiner so this is science not opinion best of luck in the search for more horse power

subfloor@centurytrans

Aces-IV has been working amazingly well for me for the last few years in my race car and several friends with high performance stock cars have said they've noticed the difference in everyday regular driving, in including being able to light up the tires for the first time.

It costs about $80/quart (the last time I bought some) and it's slightly cheaper by the gallon. I used to run a 50/50 mix of 91 and 100 octane but this actually ends up being quite a bit cheaper. It also has the added benefit of being available all the time and not having to drive around to find a station with 100 octane.

I was always a skeptic regarding additives until Dave Myers from Yank Performance talked me into trying it.

I went to the track one night with pump 91 and a couple of ounces of Aces-IV mixed in. I started off with 10 degrees of timing pulled just to play it safe and then added in 2 degrees after not seeing any KR in each subsequent pass. By the time I was done I was actually running 2 degrees more timing than I had previously with the 50/50 blend.

For 11.0:1 compression and lower they recommend 1 ounce to every 6 gallons. For higher compression its 1 ounce to every 4 gallons.

If it wasn't so expensive and I was running low I'd offer up a few ounces to whoever wanted to try it. Failing that, if somebody does buy their own bottle and isn't suitably impressed I'll buy the remaining contents.