Wrong!
Its a five speed manual. The rpm don't go way up like in a slush box, so you don't loose that enegry.
Engine is least efficient at part open throtle. You get better mileage if you opent the throttle up and lug the engine (may induce detomation if you are using cheap gas). Skip 4th if you don't have to. Don't bounce the engine off the rev limiter at the red line.. Move into overdrive as soon as possible. Check your tire pressure regularly.
Anticipate red lights and coast into the stop.
Lobby the lunkhead politicians to coordinate traffic lights. The most expensive thing you do, mialeage wise is to come to a complete stop every block.
Anticipate red lights and coast into the stop.