• Fuel System: The lifeblood of your car, the delivery of gasoline to your engine is vital. From the tank, through the gas filter and up to your fuel injectors, this system’s maintenance is critical to your car’s performance. If you notice your car sputtering or burning too much gas, then there may be a problem such as clogged fuel injectors or issues with the air delivery into the combustion chamber. Your mechanic can determine how rich (too much gas) or lean (too much air) your system is, and make adjustments such as replacing the gas filter or cleaning fuel injectors as necessary.