Hike Hacker

Reboot your hiking life

Archive for the ‘fuel economy’ tag

Improving gas mileage: the 2000 RPM challenge

TachometerBurning less gas in city traffic all week equals more gas for long drives to trailheads on the weekend. How I’ve been scrimping on gas consumption: minding my tachometer, and trying to make sure my engine never spins faster than 2000 revolutions per minute while in town.

Stop-and-go driving is fiery death to fuel economy. It’s basic physics: it takes far more energy to get 3000 pounds of steel moving from a dead stop than it does to keep it moving because the car’s momentum helps keep the car in motion. A car’s engine generates motive power by spinning; the fewer times it spins, the less gas it burns. Easing the beast up to urban speeds has got to be more economical than kicking the throttle wide open.

When a light turns green I prefer to hit the gas, sending the engine racing to 3500 or 4000 RPM. A couple weeks back I wondered what would happen if I just picked an even number like, say, 2000 RPM, as my engine speed limit.

How it’s working out: Read the rest of this entry »

4 comments | Permalink | Tags: |
Tom posted at 7:18 pm August 25th, 2008