Gasoline of choice for KK '11

[staggerlee41]

So I've had a KJ for 10 years, and very soon I will be upgrading to a KK '11. In my KJ I know the manual says regular unleaded but that vehicle runs MUCH better on 89 or 90+. In my reading here on the forum, seems the membership also confirm my findings. I have gone back and forth between 89and 90whatever and have also run different brands of gasoline. From my experiences and expermentation, the 93 Shell is my fuel of choice, Sunoco is right there too. Of course, when you need gas, sometimes you just have to take what you can get.

My question is, for you '11 owners, have you found one fuel that you prefer over the others? Does it prefer one octane over another as my KJ does?

TIA.

 

[Knightrider03m]

Normal plain jane 87 octane is best. There is no real gains with higher octane, only a loss in your wallet.

 

[Ry' N Jen]

Unless you are towing or carrying allot of gear with you, then premium fuel is recommended.
Read through your owners manual, it will out line when you should run a higher octane fuel.

 

[Dave]

Normal plain jane 87 octane is best. There is no real gains with higher octane, only a loss in your wallet.

x2........the 3.7L is made to run on 87 octaine.

Your owners manual should confirm this.

Dave

 

[staggerlee41]

Thanks guys. I just picked up the KK today and am going through manuals and learning the new layout. I recall reading in the old manual that 87 was what was recommended, but I noticed tapping every time I ran it. When I ran premium fuel, the tapping went away and the engine seemed to respond and perform better. Just curious what everyone else was using now that some of you may have miles on yours from the past year.

 

[nchorselover55]

Have an 08. Always have run 87 octane. No problems or tapping.

 

[Chris_22]

I run premium, and i have my jeep tuned accordingly. With a premium octane tune and 90+, it pulls a little better in the top end, and has just a tad more pull off the line than with the 87 octane tune.


as far as a stock tune on the 3.7, i'd assume it doesn't do much other than cost more and just burn a little more efficiently. id stick with 87