Not getting the fuel economy you used to? A drop in gas mileage can be caused by something as simple as low tire pressure or could be an early warning sign of a mechanical problem. Here are three common things that can hurt your fuel economy.
Underinflated Tires
Low tire pressure creates more rolling resistance, which makes your engine work harder and use more fuel. Check your tire pressure regularly and keep your tires inflated to the pressure recommended by your vehicle manufacturer.
Tip: Don't use the maximum pressure printed on the tire sidewall. Check the sticker inside the driver's door or your owner's manual for the correct pressure.
Dirty or Worn-Out Engine Components
A dirty air filter, worn spark plugs, or a failing oxygen sensor can affect how efficiently your engine burns fuel. Modern vehicles rely on sensors and computer controls to maintain the proper air-fuel mixture, so even a small problem can affect fuel economy.
If your vehicle is also running rough, lacking power, or has a check engine light on, it's a good idea to have it checked.
Poor Driving Habits
Frequent hard acceleration, excessive idling, speeding, and stop-and-go driving can all reduce fuel economy. Smooth acceleration and maintaining a consistent speed can help you get more miles out of every gallon.
Using cruise control on longer highway trips can also help maintain a steady speed and reduce unnecessary acceleration.
When Poor Gas Mileage Is a Warning Sign
If you've noticed a sudden or significant drop in fuel economy without changing your driving habits, don't ignore it. Problems with the engine, fuel system, ignition system, brakes, tires, or emissions system can all contribute to poor gas mileage.
Fuel Economy Diagnostics for Albuquerque's North Valley
We're at 4201 4th St NW in the North Valley, an easy stop for drivers from Los Duranes, Griegos, Wells Park, and the Sawmill District, as well as Rio Rancho and Corrales. See our full engine diagnostics services for how we find the actual cause.