what do you do to get the most mpg in your truck

[Bear]

First buy a gauge that tells you instant and avg mpg then you can see what driving habits are causing you to burn more gas. For me I though accelerating under 2krpm was key, wrong it burns almost as much gas as going to 4k, the key is not using the brakes as much and coasting to stops, etc.

They used to have a manifold pressure gauge in the carbureted days, and yep, RPM is best used to calculate horsepower, not mileage.

Mileage depends on many factors including, but not limited to,

1. road conditions/surface(i.e. paved/gravel, smooth/rough, etc)

2. weather conditions (raining/dry, headwind/tailwind, hot/cold, etc)

3. vehicle condition (well tuned/untuned, well maintained/unmaintained- from the fuel tank to the engine, right down to your wheelbearings and tire condition/pressure)



4. Load conditions (empty- no trailer to full up w/trailer etc)
and last, but not least

5. Driver's aptitude (starts fast/drives fast/stops fast, or drives sensibly/shifts gears in a timely manner- heavier loads require shifting at higher RPMs etc