What octane do u use?
08-19-2010, 11:05 AM
#1
JK Newbie
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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?
Notice differences?
08-19-2010, 11:17 AM
#2
JK Super Freak
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08-19-2010, 11:19 AM
#3
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.
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.
08-19-2010, 12:04 PM
#7
JK Super Freak
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.
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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08-19-2010, 12:28 PM
#8
JK Super Freak
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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 
08-19-2010, 12:37 PM
#9
JK Enthusiast
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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.
08-19-2010, 01:25 PM
#10
JK Enthusiast
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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