23-24mpg is in 2wd eco mode and hyper mile style on stock tires and tune. My 400hp stock Expedition does it, same driver. Same trips in my 4.7L Sequoia was typically 16mpg.I find the EPA Rating is a best case empty senario. I almost bought a F150 for work til I asked guys with them and setup for work they all got under 15mpg. Same as my TJ with a trailer.
Nothing wrong with the F150 but don't expect 25mpg camping.
Payload Ratings are carved in stone. Regardless of what you add or change that GVWR is the "legal" limit. I've seen GM void a warranty on a Camper/Pickup in for repairs which they scaled and discovered it was over weight. I imagine Ford & Dodge are the same.
Payload Ratings are carved in stone. Regardless of what you add or change that GVWR is the "legal" limit. I've seen GM void a warranty on a Camper/Pickup in for repairs which they scaled and discovered it was over weight. I imagine Ford & Dodge are the same.
Actually anything you add to try to improve it just eats into it. Airbags, sway bars, helper springs, heavier tires... whatever they weigh is eating into what you are rated to carry.
Man best I have ever done was 19.5 miles per US gallon on my 3.7 supercab on "34"s on highway around 65 mph. Towing is more like 13-16 mpg. Around Town not towing is 15 mpg.
On 32s was about the same but I always had 1000#+ in the truck and ladders on the roof so highway was worse and in town about the same.
Actually anything you add to try to improve it just eats into it. Airbags, sway bars, helper springs, heavier tires... whatever they weigh is eating into what you are rated to carry.
I'd still much rather have airbags, 10 ply tires that eat into my payload than max it out without that stuff lol
There isn't any legality though, unless you are trying to claim a warranty. And mods to suspension and tires definitely do enhance the ability of the truck to haul a load.Some people go bananas doing axle/trans/engine swaps in the name of being able to tow more... and everything they are doing actually legally decreasing what they can tow.
I average >16mpg in my Tundra. With 35" ATs. That isn't trying either.
If you want to compare mpgs, Fuelly is your best source of info. The Tundra is ~2mpg (~15%) below newer comparable 1/2 tons.
The manufacturer draws the line at some fixed number, they're saying the cooling capacity for the engine and transmission, the clamping force and thermal duty cycle of the brakes, the damping and thermal capacity of the shocks, the rigidity of the frame, the height of the springs... etc. are all adequate for some number of pounds under the circumstances of legal routes and traffic laws in the country in which the vehicle is sold.
There isn't any legality though, unless you are trying to claim a warranty. And mods to suspension and tires definitely do enhance the ability of the truck to haul a load.