Gentlemen, I solicit your opinion on this vehicle. My concerns are fuel economy and reliability. It is a 2 wheel drive short box with the 4.2 V-6 engine and a 5 speed manual transmission. 3.55 rear gears with 255/70R/16" tires. Has 62,000 miles. Is a very clean, straight little truck. Looking for a 2nd work truck and fuel economy is a very real concern for me. I drive conservatively.