I have a 4x4 Club Cab 4x4 with a 4.7 and it just rapes me on the gas at about 13.5mpg 50% hwy 50% in town. I put it some Bosh Platinum 2 point plugs and have tried all octanes of gas. I am thinking about a K&N but I am not sure if it will help much, and I don't want to waste the money buying one to try out. Does anyone have any experience with my truck setup and adding a K&N intake? Or any other ideas as to why my gas mileage sucks?

 

There are tons of ways to inprove the mpg. Look up a search at the botton of the page.

 

get rid of the platinum plugs they are killing the mileage go with the autolite 3293 from walmart copper plug that the 4.7 loves

 

well since I have put the plugs in, my gas mileage has gotten a little better, but it definately hasn't gotten worse. Plus its kind of hard to just toss out nearly $50 in plugs...

 

I just recently switched all fluids to amsoil.
I have tracked my gas usage since January and the mileage you are getting is not bad, remember you have a 4x4 and mileage is going to be worse than a 2WD.

 

I changed my plugs in my 03 QC 4x4 4.7 to the autolite copper plugs and my mileage has jumped from about 16 mpg to 17.25 mpg. Granted the champion plugs I pulled out were in pretty bad shape. I bought the truck a few months ago and it has about 72,000 miles on it. So far I am pleased with the mileage I am getting. It is about 70% highway, 25% in town and 5% playing with the tires grip or lack there of. Can't beat $13 and about 45 minutes of time for that kind of increase.Good luck.

 

Wow an '03 with 72k; that isnt bad. My '02 qc 4x4 4.7 only has 54k. I havent done a thing to it except oil and gas.

 

Yeah I got a pretty good deal on this truck. It is in great shape. I had a 2002 4x2 quad cab with the 5.9 and put about 20,000 trouble free miles on it. Hopefully I have good luck with this one. There is a bit of a clunk from time to time shifting gears which concerns me a little. There doesn't seem to be a common pattern to it though. Might just be it is starting to downshift the same time I give it some gas. I think I will change the tranny fluid and filter and see what happens. Probably time to change the diff fluids out too.

 

the clunk is probally normal, my dads 03 qc does it too when u shift it into gear from park or reverse

 

I have 360 5.9L and i get 9.2 mpg... been trying to figure out why and the HELL its so low. any sugestions?