VA Cowboy;1524098 said:
This is what my other ride looks like, an '01 Cherokee Sport. Although mine hasn't been that clean in a long time.
That's my ride, too... a Cherokee...
Let you in on a little secret you won't believe, VA-- I'm knocking down right at 22 MPG these days on that Cherokee... I'm sure you know that about 17.5 or so is more the norm... the thing is, all it cost me was like 225 bucks worth of modifications... here's what I did:
Put in Bosch Platinum 4 plugs, and the Bosch Mag Core plug wires... total cost, 60-65 bucks... I had had a good experience with the SplitFire plugs in an earlier vehicle, but the didn't make a plug for my Jeep, so the guy at the parts shop suggested I'd like the Bosch even better...
Put in a K&N Filtercharger air cleaner... total cost, c. 55 bucks... it is as good as advertised...
Put in the Mobil full synthetic motor oil, the 15 thousand mile extended performance variety (a move borne of necessity, if I was using conventional motor oil I'd be changing oil every 6 weeks, I put a lot of miles on a car; the added gas mileage was a bonus)... when you're keeping your oil in that long, you pop for a better grade of oil filter, in this case a K&N filter again... total cost, c. 75 bucks (because I took the Jeep to Jiffy Lube for the first oil change, the reason why follows)...
Got Jiffy Lube's TX-7 treatment, more or less their version of Slick 50, only better... a mechanic friend tipped me off about that treatment, said it was as good as advertised, so I decided to give it a try... judging by the results, he was not wrong... you need to get another treatment every 50,000 miles or so... total cost, c. 30-40 bucks (I really can't remember exactly how much it was)...
Does't take long for that 225 buck investment to pay for itself at today's gas prices, when you improve your MPG by like 20-25 per cent (my mileage doesn't do quite as well on winter blend fuels, about 20.5 MPG)...
My last tank full was the best ever, I went 486 miles on 21.8 gallons of gas... as you know, the Cherokee's tank is only listed at 20.3 gallons, must be one LONG filler neck, and I definitely was running on fumes when I pulled up to the pumps... but do the math, that's 22.2-22.3 MPG... in the summertime, it's not unusual for me to go 450 miles between fillups...
This worked for me, you have the same inline 4.0 liter 6 cylinder engine, I don't see why it wouldn't work for you, or any Jeep driver...
It's so easy, and so relatively inexpensive, I don't understand why Jeep didn't equip those vehicles that way coming from the factory; in the volume they could buy those parts at, it wouldn't have cost them much more than 100 bucks to make these modifications... then they could tack on 150 bucks on the price, which would be more palatable if you could put a conservative 21MPG on the sticker, and be able to deliver on it...