What mileage does your slant six powered ride get?

Slant powered 1983 D150 towing the slant powered 1968 Barracuda to a race.

The slant in the D150 was built for low rpm torque. It has 3.73 rear gears in a 8.25 differential. A833 OD tranny. Holley 2 bbl 2280 carb, dual Dutra's, free flowing exhaust, HEI ignition, cold air intake to the carb, electric fan,,,,

When towing on level ground running 65 mph AC and cruse on it will easily get 15 mpg. In hilly terrain/mountains, the mpg and the speed drop, a lot.

The towing is helped by the lightweight aluminum trailer and the Barracuda being totally stripped out inside.

When running solo the D150 will get 20 mpg, if I stay in the right lane on the highway at 65 MPH or below.
Run in the left lane 70 to 75 + and the MPG drops to the 16 to 17 range. These trucks are aerodynamic bricks.

In town / stop and go driving it gets 15 to 16 mpg.

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