High MPG work truck

[slowmover]

Thus far I haven't read of anybody here who's trying to measure mileage based on pulling 20,000 down the highway on a gooseneck trailer............. Everybody is measuring mileage hauling their solitary butt down the highway!

Yes . . MPG figures around here are mainly a stunt. Lets max out that Honda CIvic to approved weight limits and then see how numbers work out (ton-mile a better approximation).

It's the subject for another thread, but there are a handful of us around who have an interest in "working" the truck. My truck is part of a dedicated combination (with 35' travel trailer) and I know of a couple of other men with the same basic config who I hope will add their experience.

There are plenty who have an interest commercially (hotshot, LTL) using pickups, but few do any mods as the useful life of the truck plus IRS rules pretty much cover what can/cannot be done.

[oil pan 4]

Just to update the last fill up I was getting between 19 and 20 mpg on the highway while it was well below freezing with the suburban loaded up with tools towing my 4x8 trailer with even more stuff on it.
That is when the torque converter lock up let go.

The setup was HE351VE being force fed by an even larger T76 with one intercooler.
In my next round of upgrades I actually want to "intercool" the air as it passes from the discharge of the T76 to the inlet of the holset. Then "aftercool" the air again when it leaves the Holset before it goes into the engine.