Also, you ll feel good knowing that you re helping to reduce harmful emissions and keep San Antonio s air clean and breathable. Keep the tires inflated to the manufacturer-recommended pressure. You can find the proper pressure in the inside edge of the driver s door, inside the glove box, inside the gas cap, or in the owner s manual. Some tires may look fine even when need inflation, so make sure to check all four tires every two weeks with a tire gauge. Make sure all maintenance is performed on time, especially regular tune-ups.
Oil reduces friction within the engine, which increases fuel efficiency.
Check your gas cap to be sure it fits tightly. If you re not sure, free gas cap testing is offered at various times and locations around the city. If your car s exhaust is sending out smoke signals, you may have an oil leak or an improper gasoline-air mixture in the engine. Have it checked out. The more weight your car carries, the worse your gas mileage will be.