Looking for a bit of real-world info on mileage while towing. I've done a few searches and have turned up lots of 4.0 V6 info, and a few people who tow at 70mph and then complain about the mileage. I read through the towing bible which has a bunch of great info, but very little on mileage unfortunately.
I've been daily driving my turbocharged Miata for a couple of years, but I am getting ready to put a roll cage in it and turn it into a dediated track car. I'm looking at a couple of options for a combination tow rig/daily driver, and one of them is a 1st gen Tacoma. I can't afford a 2nd gen truck, so even though I know the 4.0 V6 would be better suited for towing it's out of my reach right now. The trucks I am looking at are all 5-speeds (don't want to deal with a tranny cooler or reliability issues while towing), long-bed extended cab trucks. I'm interested in a V6 Tacoma because I don't think a V8 truck will obtain the highway towing mileage I want to get to, and the diesels I have looked at are all F250s or 1-ton Dodges that would be a big pain to drive every day.
The Miata weighs about 2200lbs, so along with an open trailer I'm estimating around a 4500lb load. If you tow a boat, or something similar sized/weight at REASONABLE speeds (60mph or so), what sort of mileage do you get and how does the truck handle it? I was hoping to get 14-15mpg towing and 18+ around town - am I insane to think this is possible? I'll be towing a lot, at least 500+ miles a month, but it'll be mostly flat highway.