Which octane gas for the supercharger?
Thread Starter
New Member
Joined: 06-24-06
Posts: 67
Likes: 0
From: Quad Cities
Which octane gas for the supercharger?
Sometime ago I was considering a Saturn Ion Redline but didnt due to a couple reasons one being I didnt really want to be tied to 91 octane gas that everyone said you needed for the supercharger to function at maximum. There was usually a lot of debate on whether you needed the premium gas or could get away with cheaper 89 octane gas. All this was happening on their (saturn) board.
SO........my question or observation is, I havent really seen any discussion here about what gas you guys are putting in the supercharger. Well.....what are you using???
Premium 91, 89 or 89 ethanol blend?
SO........my question or observation is, I havent really seen any discussion here about what gas you guys are putting in the supercharger. Well.....what are you using???
Premium 91, 89 or 89 ethanol blend?
Senior Member
Joined: 07-06-04
Posts: 2,082
Likes: 2
From: Spaceball 1 or better known as CT
Originally Posted by plyboy-illest
yup dont go lower its not good for the car...
Senior Member
Joined: 02-07-06
Posts: 1,236
Likes: 0
From: NE Houston
Originally Posted by InfinityzeN
Now you might run into problems with an after market tune on low octane gas, but that depends on what they have changed.
Member
Joined: 07-01-06
Posts: 234
Likes: 0
From: orange park, FL
its only maybe 10 cent more a gal. if you put 10 gal. in you only spend $1 more... a dollar here or there isnt going to break anyone. plus the car runs better. i you want to try it out for yourself you can. fill up with the cheap stuff and see how it runs and then reply back and let us know what you found.
Senior Member
Joined: 02-07-06
Posts: 1,236
Likes: 0
From: NE Houston
Originally Posted by SilverStreak
The 2.4L should be run with 91+ Octane too... but yeah... you're getting 25+ MPG... don't fret over a few cents a gallon.
Senior Member
Joined: 10-08-05
Posts: 5,295
Likes: 0
From: AZ
The 2.4 has higher compresion and requires 91 or higher. The SS S/C manual states that 87 can be used, but for maximum performance use 91 or higher. I ran a couple tanks on 87 and it felt slightly slower, but not real noticable. I didn't hear any knock, but I never had it checked. I only run 91 now because of the 105+ temps here during the summer.
Premium Member
Joined: 07-04-05
Posts: 730
Likes: 1
From: No where man
Check your owners manual
While 91 octane is "recommended" it WILL run OK on 87 octane (preferably from a Top Tier supplier)
Yes, performance and mpg MAY suffer somewhat as depending on how hard you push it the PCM MAY drop you down to the low octane timing table (but only if the knock sensor detects detonation repeatedly)
But if you drive it EASY (no racing , sustained high boost levels or anything like that) you probably wont even notice the difference.
Only with the Stage 2 kit is 91 octane considered MINIMUM
HTH
WopOnTour
While 91 octane is "recommended" it WILL run OK on 87 octane (preferably from a Top Tier supplier)
Yes, performance and mpg MAY suffer somewhat as depending on how hard you push it the PCM MAY drop you down to the low octane timing table (but only if the knock sensor detects detonation repeatedly)
But if you drive it EASY (no racing , sustained high boost levels or anything like that) you probably wont even notice the difference.
Only with the Stage 2 kit is 91 octane considered MINIMUM
HTH
WopOnTour
Last edited by WopOnTour; Jul 9, 2006 at 05:16 PM.
New Member
Joined: 05-15-06
Posts: 22
Likes: 0
From: Classified.ab.ca
Originally Posted by SoloSK71
91 is the best you can buy in Alberta, but I got a full case of 105+ octane booster for if I end up having to fill up at a station that only offers 87.
- Solo
- Solo
Huskey/Mohawk offers both a 92 AND a 94 octane in select stations.
Just be forwarned that it's an ethonol blended fuel that results in mixtures about 2-4% leaner than indicated on a WB so if you're using stock injectors with a pulley or tuned to the "ragged edge" you might get detonation
I've used it with my SS/SC and it really responds
http://www.myhusky.ca/husky_for_you/...nded_fuel.html
http://www.myhusky.ca/locator/downloads/Alberta.pdf
Last edited by Like_Budda; Jul 10, 2006 at 01:50 AM.
New Member
Joined: 04-23-06
Posts: 37
Likes: 0
From: Texas
I was in New Mexico last month and the best gas they had was 89 octane. Car ran fine, didn't ping and got the same fuel economy. Of course it's also about 3,000 feet above sea level (requires less octane) and I didn't beat the **** out of it. If you drive like normal, keeping it under 4-5 pounds of boost then you really don't need the additional octane.
Member
Joined: 05-25-06
Posts: 331
Likes: 0
From: Montreal, QC
Wow, I never knew that...
I usually run on 89 octane since gas prices are crazy now... Thing that I'm questioning, is there THAT much of a difference between 89 and 91? I usually put 89 when gas is too expensive and 91 when prices falls abit, and personally I haven't noticed much of a difference... or maybe it's because I don't push the car like some of you do hehe
But from the people that do push the SS-SC, like I asked, is there that much of a difference?
I usually run on 89 octane since gas prices are crazy now... Thing that I'm questioning, is there THAT much of a difference between 89 and 91? I usually put 89 when gas is too expensive and 91 when prices falls abit, and personally I haven't noticed much of a difference... or maybe it's because I don't push the car like some of you do hehe
But from the people that do push the SS-SC, like I asked, is there that much of a difference?
Senior Member
Joined: 07-06-04
Posts: 2,082
Likes: 2
From: Spaceball 1 or better known as CT
Originally Posted by firesting
Wow, I never knew that...
I usually run on 89 octane since gas prices are crazy now... Thing that I'm questioning, is there THAT much of a difference between 89 and 91? I usually put 89 when gas is too expensive and 91 when prices falls abit, and personally I haven't noticed much of a difference... or maybe it's because I don't push the car like some of you do hehe But from the people that do push the SS-SC, like I asked, is there that much of a difference?
I usually run on 89 octane since gas prices are crazy now... Thing that I'm questioning, is there THAT much of a difference between 89 and 91? I usually put 89 when gas is too expensive and 91 when prices falls abit, and personally I haven't noticed much of a difference... or maybe it's because I don't push the car like some of you do hehe
But from the people that do push the SS-SC, like I asked, is there that much of a difference?
Senior Member
Joined: 05-29-06
Posts: 1,519
Likes: 1
From: Glen Ellyn, Illinois
Originally Posted by BRP
I was in New Mexico last month and the best gas they had was 89 octane. Car ran fine, didn't ping and got the same fuel economy. Of course it's also about 3,000 feet above sea level (requires less octane) and I didn't beat the **** out of it.
Senior Member
Joined: 05-29-06
Posts: 1,519
Likes: 1
From: Glen Ellyn, Illinois
Originally Posted by IMADreamer
I don't get it. Why not just spend the extra two dollars a fill up and get 93? You spent 20k+ on a car and now 2 dollars is going to break you?