Fuel Economy and Fuel Efficiency Tips for Chevy, Buick, GMC, and Cadillac

Looking for ways to help improve fuel efficiency and save money at the pump? Below are 10 tips, from the U.S. Environmental Protection Agency (EPA) to help you conserve gas — things you can do and services the Certified Service experts can provide to help improve your fuel economy for your Chevrolet, Buick, GMC, or Cadillac vehicle.


  1. Tune Up: Properly tuning your engine when it is noticeably out of tune can improve fuel economy by as much as 4%. Fixing a serious issue - such as a faulty oxygen sensor - can boost mileage up to 40%.
  2. Pump Up: Properly inflated tires improve gas mileage by up to 3.3%.
  3. Unpack: An extra 100 pounds of cargo reduces fuel efficiency by about 1%. A loaded roof rack cuts fuel efficiency by around 5%.
  4. Slow Down: Gas mileage usually decreases rapidly at speeds above 50 mph.
  5. Avoid Idling: A car gets 0 mpg when the engine is idling. Idling can use a quarter to a half gallon of fuel per hour, depending on engine size and air conditioner use.
  6. Chill Out: Speeding, rapid acceleration, and braking can decrease fuel economy by lowering gas mileage by 33% on the highway and 5% in city driving.
  7. Put It in Overdrive: Using an overdrive gear on the highway saves both fuel and engine wear.
  8. Unclog: Replacing a clogged air filter on an older vehicle with a carbureted engine can improve both fuel economy and acceleration by a few percent points under normal replacement conditions.
  9. Use the Right Oil: Using the manufacturer's recommended grade of oil improves fuel efficiency by 1% to 2%.
  10. Plan Your Trips: Plan routes and timing to avoid heavy periods of traffic congestion.


The Certified Service experts at your local Chevrolet, Buick, GMC and Cadillac dealer can inspect your vehicle and perform services that can help it operate at peak performance and help improve fuel efficiency and overall fuel economy. These inspections and services may include items such as:

  • Change engine oil, using the recommended grade of motor oil.
  • Check and change your air filter.
  • Inspect and, if necessary, replace a clogged fuel filter.
  • Adjust tire pressure to manufacturer-recommended specs.
  • Inspect/clean the intake system.
  • Inspect/replace emissions components and/or a faulty oxygen sensor.
  • Inspect brakes for proper adjustment.
  • Inspect power steering system and perform a steering alignment, if necessary.
  • Align front suspension.
  • Clean or replace dirty or malfunctioning fuel injectors.
  • Inspect/replace spark plugs and spark plug wires.
  • Check exhaust for clogged catalytic converter.
  • Examine the exhaust gas recirculation system.
  • Check the automatic transmission/torque converter for proper fluid levels and shifting.
  • Inspect coils and clean connections.
  • Examine/replace cracked or broken vacuum hoses.
  • Perform diagnostic check for stored trouble codes on your vehicle's computer that
    indicate malfunctioning systems.
  • Treat your vehicle with our Fuel System Treatment Plus. It cleans carbon deposits
    from carburetors, fuel injectors, intake valves, intake ports, and combustion

Learn about Certified Service Vehicle Maintenance and Auto Repair Technicians
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