If you own a truck and when using it as a truck are worried about MPG you have your priorities in the wrong area. If using the truck empty and MPG is a concern, do you drive enough to make it worth wild to own car (think Honda accord/Toyota Camry/ford fusion) and make it pay with all the added expenses? don't for get insurance, registration and repairs.
If your fuel bill went from $300 a month to $150, what could you really get for $100 a month (if you can't save $50 a month at least it sure as hell isn't worth it). My answer would be not a damn thing.
Towing is based on the following. SAE J2807 standard
vehicle must go 0-30 in 12 seconds or less (loaded at full tow rating)
0-60 in under 30 seconds.
40-60 in under 18 seconds
With full A/C on and ambient temps at 100* F the truck must maintain a minimum of 40 mph up 12% grade for 11 miles (davis dam) without any fluid loss, warning lights or vehicle damage.
truck and trailer are allowed 0 degree under steer in a .4 g turn (obstacle avoidance maneuver)
must be able to stop 20-0 in 35ft with trailer brakes and 80 ft without trailer brakes working.
park brake must hold entire truck and trailer on 12% grade.
Think about all that when the new trucks are rated at over 30,000 lbs
Check out the new standard in tow tests, the SAE J2807. See how this new HD truck testing will level the playing filed when it comes to testing the latest Trucks
www.trucktrend.com