100 octane fuel?
Team Owner
Joined: Feb 2001
Posts: 27,246
Likes: 130
From: Short Hills, NJ
I know of roughly three different stations that have it, they're not all that close to me but certainly within an hour or two.
Le Mans Master
Joined: Dec 2007
Posts: 8,375
Likes: 97
From: Somewhere in the Mid 9's TX
Not sure, the one station that I was at most recently (last month) didn't have the price on top of the pump like the other grades do and I didn't think to ask them, but I am curious. Their Ultra 93 was $3.35/gallon at the time so I'd assume the 100 was at least $4.00 more than that.
I know of roughly three different stations that have it, they're not all that close to me but certainly within an hour or two.
I know of roughly three different stations that have it, they're not all that close to me but certainly within an hour or two.
Thanks, Marc.
Our tracks offer race gas in the unleaded 103-104 octane range for around $9 a gallon. It's not worth it for me. I'l just keep my 93 tune that is safe on the dyno, and bump up the meth slightly if I need to. It might slow me down a tad, but not worth risking a lean condition. 100 octane would be awesome out of the pump for $6-7.
Platinum Supporting Vendor
Joined: Sep 2001
Posts: 3,665
Likes: 341
Just out of curiousty, Marc, the OP, and others... What do the pumps that offer 100 octane gas charge per gallon? How many stations are there around you guys that you could go fill up at?
I'm just curious with the issues regarding E85 and Government subsidies. I honestly haven't kept up with it in about a month, but I'm wondering if this stuff will make its way down here. Since an E85 fuel system requires a lot more injector, and burns 30-40% more fuel, I would be completely willing to tune my car on 100, and run it on 93 everyday without any boost with meth. Then just fill it up with 100 octane when I want to race somebody or go to the track. Makes more sense to me if you can get similar gas milage during cruise at 70mph on the freeway(stock gears) and easy driving in the city while keeping 93 in the car.
I'm just curious with the issues regarding E85 and Government subsidies. I honestly haven't kept up with it in about a month, but I'm wondering if this stuff will make its way down here. Since an E85 fuel system requires a lot more injector, and burns 30-40% more fuel, I would be completely willing to tune my car on 100, and run it on 93 everyday without any boost with meth. Then just fill it up with 100 octane when I want to race somebody or go to the track. Makes more sense to me if you can get similar gas milage during cruise at 70mph on the freeway(stock gears) and easy driving in the city while keeping 93 in the car.
Le Mans Master
Joined: Dec 2007
Posts: 8,375
Likes: 97
From: Somewhere in the Mid 9's TX
Justin, Yes, we can get E85 where I am at. However, it is not real common. Most of the suburburbian Krogers outside the inner city have them, and just a couple other spots. I know Dallas has places, and I think HEB opened a few around Autin and San Antonio.
The problem with it, is that in Texas, we have to travel hundreds of miles from one city to the next. Austin, San Antonio, and Dallas are all 170-250 miles away. The fuel economy isn't what bothers me with it, but I don't like the idea of being stranded miles from the nearest E85 station since not everybody has it.
The problem with it, is that in Texas, we have to travel hundreds of miles from one city to the next. Austin, San Antonio, and Dallas are all 170-250 miles away. The fuel economy isn't what bothers me with it, but I don't like the idea of being stranded miles from the nearest E85 station since not everybody has it.
Team Owner
Joined: Feb 2001
Posts: 27,246
Likes: 130
From: Short Hills, NJ
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 264
From: St. Louis, MO
St. Jude Donor '08
I listen to internet radio and heard yesterday on a Utah station gas was $2.97. Not sure why FL gas is so high now...we are normally about 10c higher than other places but this is nuts.
Wait a minute, duhh...it's season here. The tourists are here. That's why. What was I thinking.
Melting Slicks
Joined: Sep 2010
Posts: 3,061
Likes: 54
From: montreal quebec
What a ridiculous bunch of comments.Everyone is an expert.Tthe car was not built to run 100 octane so dont use it .Its really that simple.Here we have a guy with no knowledge just quoting what he read somewhere and the other guy excusing himself for bad word choices.Just tell the guy dont put 100 octane fuel in your tank thats it!Keep it simple guys.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Heel & Toe
Joined: May 2013
Posts: 23
Likes: 0
From: Western burbs of the Motor City MI
I don't know what the Sunoco stations in other parts of the country are selling for race gas at their pumps but here in MI I get my race gas at the Sunoco station and it is VP 110. It's marked 100 octane at the pump but you have to look at the octane formula they use. The VP 110 using the same formula they use for the 91 and 93 octane pump gas is actually 113 octane. I pay $6.75/gallon for it here, and NO I DO NOT use it in my C-6, I use it in my S-10 Bracket racer. The VP 110 is a leaded gasoline that WILL incinerate your cats on a motor that is designed and engineered to run on unleaded gasoline. As a side note unless you are running a compression ratio of over 12:1 the extra octane isn't going to do a damned thing for you, except lighten your wallet a little quicker.
Heel & Toe
Joined: May 2013
Posts: 23
Likes: 0
From: Western burbs of the Motor City MI
Here's the link to the VP racing fuels that a lot of the Sunoco stations sell. The VP 110 is the most common you will find at the "racing gas" pump at Sunoco.http://www.vpracingfuels.com/vp-drag-racing
Burning Brakes
Joined: Dec 2011
Posts: 876
Likes: 116
From: HOMESTEAD FL
As mentioned above, octane level is the fuels ability to withstand ignition... I have always gone by running the LOWEST octane possible to prevent pr-ignition. Any higher of an octane is a waste of money and to high of an octane level could actually hurt performance. All factory engines are built to run on a specific octane level. Our factory cars where built to run 91-93 octane, so thats what we should be running. Modifications and tuning may change that requirement.
If your getting KR with 91 octane and pan to mix 100 octane race fuel with the 91 octane in your tank, you may want to be a bit scientific about it. Make note of the amount of KR and systematically adjust the ratio until you have none. This will give you an idea of what your octane needs / requirement are.
As for the RP, on a bone stock car; 91 - 93 Octane is all you should need.
SPEED SAFE, AIR RAM
If your getting KR with 91 octane and pan to mix 100 octane race fuel with the 91 octane in your tank, you may want to be a bit scientific about it. Make note of the amount of KR and systematically adjust the ratio until you have none. This will give you an idea of what your octane needs / requirement are.
As for the RP, on a bone stock car; 91 - 93 Octane is all you should need.
SPEED SAFE, AIR RAM
