Here’s an article in the Washington Post about obsessed people who try most anything to extend the distance they can go on a tank of gas in their cars – whether a conventional or hybrid.
You need to read the entire piece but here are the titles to “techniques” hypermilers use:
1). Driver the Speed Limit
2). Turn off Your Car and Coast (not recommended)
3). Optimize Your Route
4). Watch Your Tire Pressure
5). Change Your Oil (and use thinner oil)
Sound a bit absurd some of it? Don’t tell that to a hypermiler.
Tom Remington
