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What octane do u use?

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Old Aug 19, 2010 | 11:05 AM
  #1  
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Default What octane do u use?

Just wondering what you guys are putting in your tanks after rehearing, wheels, tires, lifts.. Etc? Regular. Plus. Premium?

Notice differences?
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Old Aug 19, 2010 | 11:17 AM
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Originally Posted by Commando-8
Just wondering what you guys are putting in your tanks after rehearing, wheels, tires, lifts.. Etc? Regular. Plus. Premium?

Notice differences?
As of now I am using premium on programmer set to 91 performance
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Old Aug 19, 2010 | 11:19 AM
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Use regular unless you have a programmer set for 91+. A few people use 89 if they have extreme pinging issues with regular level programming.

As long as the ignition timing (programming) is set for regular, a higher octane won't do anything for you and could actually reduce mileage.
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Old Aug 19, 2010 | 11:24 AM
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premium and a 91 octane tune
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Old Aug 19, 2010 | 11:47 AM
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Most of the time I put the cheep sh!t in it. Rubi W/auto, stock gears and tires
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Old Aug 19, 2010 | 11:52 AM
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Originally Posted by Red Dog
Most of the time I put the cheep sh!t in it. Rubi W/auto, stock gears and tires
x2. 10 characters.
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Old Aug 19, 2010 | 12:04 PM
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even the cheap shit aint so cheap for me.

but thats what I run, i'm just happy they don't have a lower grade as I would be the cheap SOB trying to use it.
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Old Aug 19, 2010 | 12:28 PM
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I have a programmer for sale if anyone wants to run 91 plus to get more power and mpg even with 87 octane tune. I bought a superchip instead to disable TPMS. Sorry to hijack but we are on that subject
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Old Aug 19, 2010 | 12:37 PM
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I run 87. Have run 91 but didn't really notice any difference. The best mileage I got was in Wyoming running 85, only time my reading has been over 20. If it didn't take me 5 tanks to get over there I'd be running that.
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Old Aug 19, 2010 | 01:25 PM
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I use 87 also. Don't see the point of going higher. Its not like its going to make a huge performance difference for the cost difference. But now that I'm thinking of it, there is a gas station not too far from me that has 110....that might make the JK a bit peppy
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