11mpg towing. That's 2 more than I get now. That'll pay for itself.
After making the switch to Shell fuel per Hemifever's suggestion I drove from Portlandish area over the coast range to the coast and touched 21mpg per the computer. I know that isn't super accurate but decent considering I pulled the hills at 70ish just because.
Without the tuner this past summer I took a road trip to central Montana. There were two fill ups that calculated out to 24-25mpg. I wish I would have kept track and averaged but I think over the 2k miles we were in the 21ish mpg range for an average. Crew cab 4x4 with all our camping gear for over a week. We even drove Going to the sun road in Glacier National Park.
One of the last fuel ups was in Kalispell, Montana. Drove from there through Idaho into Washington, down to Ritzville, WA for a burrito, over to Palouse Falls, camped for the night, out of the Palouse to Tri Cities for a Burrito at El Sazon, then into Oregon and followed the Columbia Gorge into the wind to Hood River, Oregon. That was 560 miles and still had almost 1/4 tank. I have the receipt somewhere with the mileage written on it. That was some crazy good economy. It was in the 90's the whole way too with AC on for most of it.
