Taking good care of your car isn’t just a nice thing to do so as to not hurt its feelings (they have been known to get testy), but it is also a good way to save a lot of money in the long run. I knew the idea of this example, but hadn’t seen the numbers laid out before. Good stuff:
3. AIR FILTER
How Often: Check monthly; change when less than 50 percent of the filter lets light through when held up to a 100-watt bulb.
Pay Now: Free to check; $15 to $50 to change yourself; add another $20 or so for someone else to change it for you.
Or Pay Later: 10% increase in fuel consumption; if gas costs $3 per gallon and your car holds 20 gallons, you’re wasting $6 with each fill-up–$156 a year, if you fill up every two weeks.