Monthly Archives: July 2020

What Causes A Decrease In Fuel Efficiency?

A sudden decrease in fuel efficiency can be alarming, especially if your heart is set on a planned road trip. While a reduction in fuel efficiency can be a result of some minor issues, sometimes it can be an indicator of a more severe problem. If ignored, you can expect to deal with some mechanical issues that develop into costly repairs. While many factors can lead to an increase in fuel consumption, below are some of the most common factors:  Oxygen Sensor Your vehicle’s oxygen sensor measures exactly how rich or lean your exhaust gases are when they leave the combustion chamber. A dirty or failing oxygen sensor can lead to a significant drop-in mile per gallon by up to 20 percent. A faulty oxygen sensor can also lead to your vehicle idling rough and a failed emission test.  Weight If your vehicle carries a lot of weight, it can lead to an increase in fuel consumption. The weight can consist of too many passengers, items, or roof ... read more