You notice that suddenly your vehicle seems to be getting worse gas mileage than it did awhile back. Why? What happened?
Like with most things on your vehicle, there can be numerous problems at the root of poor fuel economy. Let’s start with the simple ones and work our way to the more complicated issues:
Tires: This one’s easy. Underinflated tires mean more rolling resistance (think about riding a bike with a low tire), and more rolling resistance means poorer fuel economy. Check your tire inflation at least once a month, while the tires are cold, using a good quality tire gauge. Even a pound or two of underinflation can be enough to cause problems!
Air filter: The air filter is made of pleated paper or fabric elements which pre ...[more]