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Unread 03-01-2002, 10:11 PM   #1
AllanAlxndr
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91 Octane

Hey Guys,
Just thought I would share...
Tonight when I was getting Gas I decided to put in the 91 Octane instead of the 87. I only drove a short distance home but i already notice the difference. It runs extremely better, not little knocks/ticks and you can hear it in the Exhaust. I also felt some power that i never had before.
Again, I just thought that I would share with everyone.

Allan

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Unread 03-01-2002, 11:28 PM   #2
Rockwall
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yeah i tried that 2 months ago and since then i fill it up supreme 2 out of 4 gas tanks. and if you want to do even more try the stp fuel injector cleaner and the trottle body/carb cleaner in a can that you spay in you engine i works wonders.
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Unread 03-02-2002, 07:27 AM   #3
AllanAlxndr
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ok, Thanks I will have to try that...

Allan
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*'90 Wrangler*
*4 Banger*
*6" of lift, (4" suspension, 2" body)*
*33" ATs on Outlaw II's*
*Pioneer DEH3500/CD deck*
*1800WATT Amp w/ Custom Box*
*2 - 8" Rockford Fosgate HEs*
*Cobra 18WXSTII w/ 4' Firestik Antenna*

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Unread 03-02-2002, 11:28 AM   #4
RCHavok797
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I don't think we have 91 octane around here. We only have 87, 89, and 93. Last week I tried 89 which only cost $2 more to fill up my whole tank
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Unread 03-02-2002, 11:35 AM   #5
AllanAlxndr
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Quote:
Originally posted by RCHavok797:
I don't think we have 91 octane around here. We only have 87, 89, and 93. Last week I tried 89 which only cost $2 more to fill up my whole tank
Yea... It normally costs me about 13 bucks to fill up. When I filled up with the 91 octane it took about $15.16 or something like that. It seems to be worth the extra couple bucks though... I paid $1.19/gallon for the 91 compared to the $0.99/gallon of the 87

Allan
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*'90 Wrangler*
*4 Banger*
*6" of lift, (4" suspension, 2" body)*
*33" ATs on Outlaw II's*
*Pioneer DEH3500/CD deck*
*1800WATT Amp w/ Custom Box*
*2 - 8" Rockford Fosgate HEs*
*Cobra 18WXSTII w/ 4' Firestik Antenna*

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Unread 03-02-2002, 11:51 AM   #6
iamthemellowman
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I notice it most when driving on the highway. Every three months or so I take a 300 mile trek back to massachusetts. When my tires were pumped up like crazy (35psi) i got 21mpg which i have yet to repeat.. normally i'm at 18 or so but i need spark plugs and my tires are around 29psi

i had a bronco Ii that had the computer feedback carbureated 2.8L v6,, and with high octane it would hold the highway hills with a trailer in tow (sailboat) without the high test I got terrible mileage and horrendous performance.
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Unread 03-02-2002, 11:55 AM   #7
AllanAlxndr
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My gas mileage sucks... I only get about 8-10 mpg... and only about 126 miles out of a tank... That is mostly city driving, stop 'n go. I am hoping this will help a little bit

Allan
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***What do I know, I just cause Problems***

*'90 Wrangler*
*4 Banger*
*6" of lift, (4" suspension, 2" body)*
*33" ATs on Outlaw II's*
*Pioneer DEH3500/CD deck*
*1800WATT Amp w/ Custom Box*
*2 - 8" Rockford Fosgate HEs*
*Cobra 18WXSTII w/ 4' Firestik Antenna*

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Unread 03-03-2002, 04:52 PM   #8
Bob K
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There is a common misconception that octane is go-juice and it gives us increased horsepower and/or increased gas mileage. The fuel companies don't argue that myth because they make more profit on higher octane fuels. The fact is that octane rating refers to how resistant the fuel is to detonation. Simply put, higher octane gas doesn't burn as readily. The lowest octane fuel that doesn't detonate prematurely will give you the best performance.
http://www.motorcycle.com/mo/mcnuts/rt-fuel1.html
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Unread 03-04-2002, 09:08 AM   #9
Don Tibbetts
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What Bob says is true. However, sometimes on engines that have computer controls, the computer will run the ignition more advanced and the engine will run more efficiently on higher octane fuel.
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Unread 03-04-2002, 11:37 AM   #10
mikeythefireman
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Just for the record, Allan you suck!!

Gas prices are a little higher in SoCal. About $1.50 for midgrade. About $1.60 for Supreme. Costs an easy $20.00 to fill my tank.

Be glad you can get 91 octane for that price. I always fill up with the best, cheaper in the long run and normally better gas mileage too.
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Unread 03-04-2002, 01:44 PM   #11
Kev
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IMHO and in my experience, higher octane gas has different effects on different cars. I had a car that I saw or felt no noticable difference (in MPG or anything), but my Jeep definately seems to run quiter and gets slightly better mileage.

I hate Utah's gas taxes; I worked at a service station for 8 years and found out that almost $.50 of every gallon goes to taxes (although I'm sure CA is worse). So be happy that your regular is $.99 per gallon.
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Unread 03-04-2002, 03:00 PM   #12
AllanAlxndr
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I'm not complaining here... I am only 16(almost 17) and like to save as much money as I can for other mods. I figured it would only be a couple dollars difference in price of the gas when I filled up so I decided to try the 91. Gas wan't always this cheap though... It used to be $1.30 for the regular stuff.

Allan
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***What do I know, I just cause Problems***

*'90 Wrangler*
*4 Banger*
*6" of lift, (4" suspension, 2" body)*
*33" ATs on Outlaw II's*
*Pioneer DEH3500/CD deck*
*1800WATT Amp w/ Custom Box*
*2 - 8" Rockford Fosgate HEs*
*Cobra 18WXSTII w/ 4' Firestik Antenna*

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Unread 03-04-2002, 06:24 PM   #13
Brendan
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I live in Connecticut and gas rose to 2.35 for premium last summer. The funny thing is now it cost like 1.20 for 87 octane, 1.30 for 89 octane and 1.35 for 93. So why would you pay 10 extra cents for 2 more octane, when you could pay the extra 5 cents and get 4 more octane. It just doesn't make sense. I'm running regular now. I used to run premium but ever since I ran my motor with only one quart, i figure high test is for good motors. I'm 17 too, so every penny counts.
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