(KCPW News) Clubs on the Internet advocate it, but AAA spokeswoman Rolayne Fairclough says hypermiling can be dangerous.
"Hypermiling is trying to stretch your car's typical gas mileage," Fairclough says. "Well, at these prices it sounds like an excellent idea, but there are some of the ways hypermilers are doing it that are really quite dangerous."
Hypermilers try to boost fuel efficiency by coasting in neutral or with the car's engine shut off; drafting larger vehicles on freeways; overinflating tires to reduce road friction; and rolling through stop signs. But there are safer ways to stretch a tank of gas, Fairclough says.
"You can make sure your tires are at the correct pressure. And you can make sure you drive smooth with smooth acceleration and braking. You can use the lowest (grade) oil recommended by your manufacturer. And keeping your car well maintained will also improve your miles per gallon," Fairclough says. "So there are some smart ways you can do this. But some of them just go too far and put the drivers at risk."
Fairclough says Internet chatter on hypermiling techniques is increasing as fuel costs rise.