The above was a heavy weight Centurion too and got 13 mpg-- with work the Reg Cabs can be put on a diet and can shed 1000 lbs compared to this beast...................with additional rear end mods, modern exhaust updates, latest Banks fuel/air delivery tech, end-to-end lightening (including light weight wheels), smaller tires w/nitrogen and other mods 15-19 on the HWY is very possible.
Keep the truck and get a small car to drive daily, it'll get 4 or 5 times better gas milage not just 4 or 5 mpg better.
This. A truck is just that, a truck. It's made to work and play hard, and you pay for that with low fuel economy. It's a trade-off.
I don't like driving a car, and most small cars that get decent mileage are front wheel drive, which I REFUSE to own. Plus even when I did own a car it got used and driven like a truck anyway. At the same time I don't need to take my SuperCab 4x4 to the store, junkyard, work, or other trips around town where I'm running unloaded, not towing, and not using the 4x4.
So, I'm planning on buying a standard cab, 4 banger Ranger instead. Less mileage than a small car, but better than a full-size truck. I can live with that, and this way I can still haul or tow a few things if needed (think junkyard run), and when I want to head into the woods, mud, or have a date night I can take my big truck instead.
I want to throw one out there against the just buy a Eco box claim. You need to figure out how much you drive, figure out how much that cost then compare. Figure out what mileage a Eco box would get, how much the added insurance would be and then add the amour your going to pay for the new Eco box. Doesn't seem so beneficial now does it? I'll run you through an example here.
Say your truck gets 8 mpg and you drive 150 miles a week. That's 7800 miles a year. Divide by 8 mpg and your left with 975 gallons of fuel a year. Multiply by $3.75 as an estimate for gas price and your at $3,656.25 a year in gas. That's quiet a lot. Now say you buy an Eco car that gets 30 mpg. That's 260 gallons a year or $975 for gas. Big savings right? Now add the price of the car. Let's say $3500 for a reliable daily. Your now at $4475. Then you factor in insurance for a second vehicle. Let's say $100 a month for a young driver like you. That's another $1200. So now we are at $5675 the first year. But that's not it. That second car is likely gonna need maintenance. That's more money. Lest say $500 a year. That brings the total to $6175 the first year. This is just for the new car. This doesn't include the truck your still paying for. See what I mean?
The notion of an Eco box is good, but not if you drive very few miles like I do. I was in the exact same position as you last year and even went as far as going to my insurance guy and talking with him to see if it would save me money. He strait up told me that unless I sold my truck for a fuel efficient car, it wouldn't save me anything for a few years.