Poor Fuel Efficiency? Here Are Some Possible Causes

After driving our vehicles for a while, we start to understand how good or bad our vehicle's fuel efficiency is normally. You more than likely keep a mental note of how often you get gas and how much a tank costs you every once and while. However, what happens when you notice that your vehicle's fuel efficiency has greatly decreased, and what do you do next?

It happens - due to certain causes, our vehicle's fuel efficiency can actually decrease, and we suddenly find ourselves getting gas more often and spending more money on fuel. If this has occurred, there is usually an underlying issue that is causing the decrease. Here are some possible causes of a decrease in fuel efficiency: 

  • Bad oxygen sensor
  • Defective coolant sensor
  • Bad thermostat
  • Engine misfiring
  • Intake mainfold leak
  • Worn spark plugs
  • Dirty fuel injectors
  • Dirty air filters
  • Bad tires
  • Poor driving habits

These are just some of the common causes that can lead to poor fuel efficiency. If you notice a sudden change in the mileage your vehicle is getting, don't hestiate to bring your vehicle into the experts here at NWA Car Clinic and we will help restore your vehicle back to its best! 

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