hey guys, i recently bought a 2011 wrangler unlimited (iloveit) and ive been wondering which gas to fill it up with. This is my first 0-milage car so i have no idea.... and i dont want to possibly mess it up or take away from its life by putting the wrong gas.

 

What does the owners manuel say?

 

IMO run mid or higher in it those motors need all the help they can get to make power

 

That is way wrong . Run what the owners manual says. A vehicle designed to run on 87 will not rin better or make more power with a higher octane. All youll end up doing is spending more money on fuel.

 

owners manual or dealer sticker on window.

 

The thing is that apparently jeep/chrysler do not give an owners manual. and when i asked them why, they told me that i need to send chrysler and email and then it will take 4-5 months for them to ship me an owners manual... which is very stupid to me.... so until then i dont know what to use......

 

Moved to other vehicles.

 

whoever told you that is bs'ing you. Every vehicle comes with an owners manual.

 

no new JK do not come with a printed manual

 

it dose if you live in a state with blended ethanol gas the higher octane the lower the ethanol content for the most part. around here I have 2 stations that sell corn free 93 so that's what i run in the hemi and the XJ. There is a big fuel mileage difference. on 87 i'm lucky to get 13-15mpg with the hemi with the 93 i run 18-19 on the same roads

 

send chrylser that e-mail also ask them what gas to use.... but it should say on the window sticker...

 

Check the gas cap, usually states there if it needs premium..

 

E10 gets worse mileage period it has nothing to do with octane. Besides not every one has access to non ethanol fuel. My closest station is well over 100 miles away.

I bet your XJs mileage on non ethanol 87 would be the same as your 93 non ethanol

All the stations around here it's 10% ethanol no matter what octane.

Also the more ethanol the higher the octane. E85 is a preffered fuel om the force inducted tunning realm because it has a higher knock point allowing for more aggressive timing to make more power.

 

All cars ive ever driven if it required premium it said so on the dash by the fuel guage and on the cap or fuel door.

 

I work for a Chrysler/jeep/dodge dealership. First off the ownersmanual is online so you don't have to wait for the printed one and it's got the 3.8 just run regular gas it's the old dodge caravan motor it needs nothing special.. Just IMO you should of held out for the 2012 it's going to get the new 3.6 litre pentastar engine makes 283 hp right out of the box