Originally Posted by gotursix
Well, I feel a LITTLE better after reading these. I just joined this forum and the only reason was to try to get advice on how to improve my mileage while towing my camper. 20' TT @ 4500 lbs. I'm getting 5-6 mph!! It's a 2003 SLT Quad Cab with a 4.7. Everything is stock. Somebody told me a K&N air filter might help. I'm seriously thinking about buying a 2500 just to tow this thing because i HAVE to get better than 5mpg. It takes all the fun out of camping if I have to spend $300 on gas to go less than 400 miles round-trip. Is there ANYTHING else I can do?
Ive heard a few owners complain about the 4.7 with towing, its a good motor, just not as powerful for towing as the 5.7 is. What year is the trailer, the older trailers (lets say early 2000's and older) weight more than the current models do at same length/configuration. Check your trailer brakes and tire pressure. Might be able to get some lower resistance rolling tires for the trailer to help.
Few things you could do to the truck:
1. Intake and Exhaust (may help open her up a bit)
2. Rear end change
3. Computer program
4. Use 89 Octane (sometimes this helps)
I'd hate to hear you replace the truck cause of the trailer...some people keep the truck and get a newer trailer because they are lighter. All depends on finances and how attached you are to each.
Have you checked the Trailer Empty and loaded weight in comparision to the VIN/RV sticker? Maybe lighten the load inside the trailer...
Just compliling ideas while im bored here at work,
Hope this can help.