7 gas-saving myths that can hurt your mileage
Tailgating saves gas
Myth: You've probably seen those drivers following dangerously close to large trucks. They may be among the drivers who believe that, by tailgating a tractor-trailer, their cars will be pulled with the draft it creates.
Fact: While this one is true, the fact is it's an extremely dangerous tactic and is not worth risking your safety for a couple of added miles per gallon.