Last post on Sep 06, 2013 at 3:11 PM
You are in the Jeep Wrangler
What is this discussion about?
Jeep Wrangler, SUV
#13006 of 23397 Re: 2004 Wrangler Unlimited [capthowdy #13005]
Apr 30, 2004 (12:04 pm)
To get better gas mileage? hehe Don't get a Jeep. The Wrangler is esp notorious for lousy gas mileage. Blame it on its aerodynamics.
I have been working to get my mileage up. I've replaced the air and oil filters, installed new plugs and wires, and done everything mechanically to improve it. I've heard people say a K&N may improve mileage a bit, but there are filtration issues there. Tire size may play a role - bigger = lower mileage (generally). If you are in a manual, follow the shift light.
Not sure what else you can do. But enjoy your Jeep! It may not be too practical, but they sure are fun.
#13007 of 23397 2004 Wrangler Unlimited / Mileage / capthowdy
Apr 30, 2004 (12:39 pm)
A genuine 15 mpg from an Unlimited, which is an auto and also heavier than a regular Wrangler, is excellent. I don't know what your total $3500 of accessories will consist of, but if you add any significant weight in terms of bumpers, rockers, or a winch etc., then expect your mileage to go down.
If you really want better mileage keep your speed below fifty, keep your tires fully inflated, use synthetic lubricants throughout............ and drive as though you had a bowl of scalding hot soup balanced in your lap!
#13008 of 23397 Re: 2004 Wrangler Unlimited [erickpl #13006]
May 01, 2004 (6:12 am)
You say "If you are in a manual, follow the shift light" ... it always seems to light up prematurely, especially as one might need more torque or power to get up a hill in the lower gear, it lights up? I feel like I need to ignore that light to keep it from "pinging" in that higher gear? greta
#13009 of 23397 Shift Light /greta
May 01, 2004 (7:30 am)
The light is a guide to getting the best emissions/mpg. It has no knowledge of the current traffic conditions, or the steepness of any hill that you might be on.
If you've only been changing gear when the shift indicates, that's almost certainly why you've been experiencing excessive 'pinging'.
If the engine lugs and you experience 'pinging' when you change into a higher gear, then you changed up too soon. With the torque available from the 4.0, you should be able to go up and down the gears with the smoothness of an automatic.
As I said before, a rev limiter prevents you from over reving it. There will be occasions when you'll need to almost red-line it (maybe ascending a mountain pass while overtaking a semi), and times when following the shift light will be appropriate (maybe a long trip on a flat road). You need to experiment with your driving technique a little.
#13010 of 23397 Re: Shift Light /greta [mac24 #13009]
May 01, 2004 (11:48 am)
I typically shift up or down when it feels and sounds optimally appropriate to the speed, terrain, etc., as I think I would know best when to do so. However, "light pinging" does occur occasionally. So; I just went and added 1/2 a tank of 89 Octane to the existing 1/2 of 86 Oct. in the tank. It seems to have quieted it all down, though I have only driven a few miles so far, and its hard to really notice yet. Anyway, here is my next question, as I did that, have I "Spoiled my Jeep" now??? Will I have to stay with the higher Octane (& its higher price,) or else forever be doomed to suffer all the more "pinging" if I were to drop back down to the 86, now that I goosed it up with that higher Octane? greta
May 01, 2004 (12:04 pm)
Methinks thou dost worry too much.
If 89 Octane keeps the Jeep from pinging, then that's what I would use. It's only about 10 cents per gallon more than 86 Octane, right?
Around here, "regular" is 87 Octane, and I don't have the pinging problem with Thelma Jane. Could be you are just a hair shy on Octane at 86, even though you are supposedly OK running it.
If it were me, I would use the 89 Octane and stop worrying about it. Gas prices are so high anyway, what's a dime a gallon???
Have you hugged your Jeep today?
#13012 of 23397 89 Octane / greta
May 01, 2004 (12:13 pm)
Yup, you've spoilt it now. If you ever try to use a lower grade again it'll stamp its tires up and down in a tantrum and refuse to start!
Seriously, if you have a problem with pre-ignition that isn't caused by your driving style, then at only 3800 miles you need to have it taken care of under warranty.
#13013 of 23397 Howdy, Howdy
May 01, 2004 (12:19 pm)
Welcome and Howdy, Capt. Howdy! I felt it was my duty to do that, so I guess that was my "Howdy duty."
Seriously, glad you found us and hope you will stick around and post often. As far as I know, you are our first family member to own an Unlimited. Please keep us up to date with how you are enjoying that Jeep and how you are using it. You gonna go offroad with it???
Hey, if you ever want to come down to Land Between the Lakes in western Ky, I would be glad to guide you around Turkey Bay OHV Area. That's where I do my wheelin', and it's a great place to wheel!
Your drive would be about 7 hours from Chi-Town (I checked your profile). I grew up in Hammond.
Hey, wheelsdown, who is one of our members, lives in Chicago, so maybe you guys could hook up.
Have you hugged your Jeep today?
#13014 of 23397 Re: 2004 Wrangler Unlimited [capthowdy #13005]
May 02, 2004 (1:57 am)
Glad to see an Unlimited owner here. I'm considering a wrangler purchase and was pleased to see the unlimited model added to the wrangler line-up. My wife learned to drive on a '72 Commando; the unlimited approaches that size. Questions for you are: did you test drive the other wranglers? What differences did you notice? Why did you opt for the unlimited? Were you set on an automatic and didn't mind that standard is not offered in the unlimited? Personally I prefer a manual and will wait to see what DC releases next year. Sorry for the long list of Q's but remember, you asked for it.
#13015 of 23397 Perhaps I dost worry too much. Thanks! greta
May 02, 2004 (4:39 am)
Perhaps I dost worry too much. I just hate the idea that this new '04 Wrangler; which I've looked forward to owning for sooo long, could have problems. The dealer just seems to shrug off my concerns, as it says in the manual that light Pinging" is OK. That answer just doesn't sit well with me. Thanks! greta