Fuel Saving Tips
Not only is it illegal to drive a pickup truck with the tailgate down in most areas, but when Mythbusters did a gas mileage test between identical trucks- one with tailgate up & one down, the truck with the tailgate up got better mileage. Why? Because the raised tailgate creates a circulating area of low pressure over the truck bed, while leaving the tailgate down sucks the air rushing over the cab straight down onto the bed, pushig it downwards and effectively making it act as though it weighs more than it really does.
posted by DingoBoi on July 16, 2009
this tip works for 79% of voting Fuelly members.