Poor Fuel Economy
1. Faulty engine thermostat or improper heat range application.
2. Check driving habits.
a. A/C on full time.
b. Incorrect tire pressures.
c. Excessively heavy loads being carried.
d. Excessive acceleration.
3. Thermatic Air Cleaner Operation.
4. Air cleaner element dirty.
5. Improperly calibrated speedometer.
6. Vacuum hoses split, kinked or improperly connected.
7. Faulty spark plug wires.
8. Improper ignition timing.
9. Faulty spark plugs.
10. Improper compression.
11. Brakes dragging.
12. Restricted exhaust system.