Make sure the 110 you're looking at is NOT LEADED if you want to waste your money.
110 octane?
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
remember octane is just resistance to detonation. If you car doesnt knock on 87 octane, 93 wont do any good. If you car knocks like crazy on 93, 110 may help. You can tune your car to get more power by using 110 but it involves timing advance etc. So short answer 110 is a waste if 93 is running fine.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
But if your LS1 is knocking at 91 octane plus it's not working well. It has a knock sensor that adjusts for 87 octane but 91 should work fine other than hot and high.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
5 Best & 5 Worst Corvette Daily Drivers
Joe Kucinski
The Headlights of Every Corvette Generation Explained
Joe Kucinski
5 Best & 5 Most Overrated Corvette Track Packages of All Time!
Joe Kucinski
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
Race Director
Joined: Jun 2009
Posts: 12,331
Likes: 139
Many people say the see an improvement when they go to a higher octane. Now am sorry but thats a feel good thing to do.
Unless you have mods and they are tuned for that octane (ie Turbo, SC, Nitrous) the engine and the tune will not see a difference. The recommended gasoline for most cars is regular octane. In fact, in most cases, using a higher octane gasoline than your owner’s manual recommends offers absolutely no benefit. It won’t make your car perform better, go faster, get better mileage or run cleaner. Your best bet: listen to your owner’s manual.
What Are Octane Ratings?
Octane ratings measure a gasoline’s ability to resist engine knock, a rattling or pinging sound that results from premature ignition of the compressed fuel-air mixture in one or more cylinders. Most gas stations offer three octane grades: regular, usually 87 octane, mid-grade, usually 89 octane and premium, usually 92 or 93. The ratings must be posted on bright yellow stickers on each gasoline pump.
So unless you like throwing away money then by all means buy the 110 gas and have at it.
Hell the only time i use 110 octane is when I use the bottle because that is what the shot was tuned for. Anything lower than that an I can run into trouble.
Be smart use your brain and put 93/91 in the tank and be on your way.
Unless you have mods and they are tuned for that octane (ie Turbo, SC, Nitrous) the engine and the tune will not see a difference. The recommended gasoline for most cars is regular octane. In fact, in most cases, using a higher octane gasoline than your owner’s manual recommends offers absolutely no benefit. It won’t make your car perform better, go faster, get better mileage or run cleaner. Your best bet: listen to your owner’s manual.
What Are Octane Ratings?
Octane ratings measure a gasoline’s ability to resist engine knock, a rattling or pinging sound that results from premature ignition of the compressed fuel-air mixture in one or more cylinders. Most gas stations offer three octane grades: regular, usually 87 octane, mid-grade, usually 89 octane and premium, usually 92 or 93. The ratings must be posted on bright yellow stickers on each gasoline pump.
So unless you like throwing away money then by all means buy the 110 gas and have at it.
Hell the only time i use 110 octane is when I use the bottle because that is what the shot was tuned for. Anything lower than that an I can run into trouble.
Be smart use your brain and put 93/91 in the tank and be on your way.
Race Director
Joined: Aug 2003
Posts: 13,421
Likes: 8
From: Lake Mary Florida
I'm not aware of 110, I'm aware of 100LL or avgas. That's low lead not unlead. Course I live a sheltered life LOL.
As mentioned if it is knocking at 91 you've got some other problems perhaps.
As mentioned if it is knocking at 91 you've got some other problems perhaps.
Instructor
Joined: Mar 2010
Posts: 104
Likes: 1
Many people say the see an improvement when they go to a higher octane. Now am sorry but thats a feel good thing to do.
Unless you have mods and they are tuned for that octane (ie Turbo, SC, Nitrous) the engine and the tune will not see a difference. The recommended gasoline for most cars is regular octane. In fact, in most cases, using a higher octane gasoline than your owner’s manual recommends offers absolutely no benefit. It won’t make your car perform better, go faster, get better mileage or run cleaner. Your best bet: listen to your owner’s manual.
What Are Octane Ratings?
Octane ratings measure a gasoline’s ability to resist engine knock, a rattling or pinging sound that results from premature ignition of the compressed fuel-air mixture in one or more cylinders. Most gas stations offer three octane grades: regular, usually 87 octane, mid-grade, usually 89 octane and premium, usually 92 or 93. The ratings must be posted on bright yellow stickers on each gasoline pump.
So unless you like throwing away money then by all means buy the 110 gas and have at it.
Hell the only time i use 110 octane is when I use the bottle because that is what the shot was tuned for. Anything lower than that an I can run into trouble.
Be smart use your brain and put 93/91 in the tank and be on your way.
Unless you have mods and they are tuned for that octane (ie Turbo, SC, Nitrous) the engine and the tune will not see a difference. The recommended gasoline for most cars is regular octane. In fact, in most cases, using a higher octane gasoline than your owner’s manual recommends offers absolutely no benefit. It won’t make your car perform better, go faster, get better mileage or run cleaner. Your best bet: listen to your owner’s manual.
What Are Octane Ratings?
Octane ratings measure a gasoline’s ability to resist engine knock, a rattling or pinging sound that results from premature ignition of the compressed fuel-air mixture in one or more cylinders. Most gas stations offer three octane grades: regular, usually 87 octane, mid-grade, usually 89 octane and premium, usually 92 or 93. The ratings must be posted on bright yellow stickers on each gasoline pump.
So unless you like throwing away money then by all means buy the 110 gas and have at it.
Hell the only time i use 110 octane is when I use the bottle because that is what the shot was tuned for. Anything lower than that an I can run into trouble.
Be smart use your brain and put 93/91 in the tank and be on your way.
Racer
Joined: Jan 2011
Posts: 393
Likes: 1
A Shell station 2 miles from my house sells 110 leaded.....as has been mentioned it is a waste of $$ if your car is not tuned for it...actually may hurt performance.....and the real problem is what the lead does to your O2 sensors and cats.....friend of mine put 110 in his C4 and within 5 miles it started missing and running rough....had to replace the O2 sensors....
Administrator
Joined: Mar 2001
Posts: 368,638
Likes: 24,868
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '26
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
I agree with the above posters - no real need to put that kind of octane in C5 engine (unless it has been modified and really needs it).
Melting Slicks
Joined: Sep 2007
Posts: 2,599
Likes: 1
From: Long Island, Nassau County New York
Melting Slicks
Joined: Feb 2009
Posts: 2,857
Likes: 234
From: SW Nuh Hampsha
2018 C5 of Year Finalist
A Shell station 2 miles from my house sells 110 leaded.....as has been mentioned it is a waste of $$ if your car is not tuned for it...actually may hurt performance.....and the real problem is what the lead does to your O2 sensors and cats.....friend of mine put 110 in his C4 and within 5 miles it started missing and running rough....had to replace the O2 sensors....
