Fuel Saving Tips
I've seen a lot of people on highways or moderate traffic get behind someone driving slower than they are and brake in order to avoid a collision. It's unnecessary to do so, as simply letting off the gas before you get too close will slow you down as well. Braking and then accelerating to match a new speed is a waste of engine power. In a manual transmission, downshift to slow down slightly more rapidly (unless that downshift brings you to >3000 RPM, then it's a grey area), then shift back in the needed gear once you've gotten near your new speed.
posted by playbass06 on September 11, 2010
this tip works for 97% of voting Fuelly members.