• Ashley Bradish

Why am I losing gas so fast?

Updated: Aug 23

There's no question about it; the U.S. is facing difficulties and tension as gas prices rise. The time to get smart and be proactive is now. Let's all get through this together and pass on ways to increase our mileage and save on gas.


Tire Pressure

Underinflated, overinflated, or uneven tires will lower your gas mileage.


Use the guide on the side of your door to find the optimal psi. Do not go by the tire's max pressure!


Tire Pressure Gauge Tool

Air Filter

If you have an old or dirty air filter, your engine won't get enough clean air to burn fuel. It will end up using more to compensate.


Learn more about cabin and air filters here: Cabin Air Filters: A Breath of Fresh Air.


Oxygen Sensors

The oxygen sensors measure air intake and emissions output for your vehicle. A faulty oxygen sensor can lose up to 40% of your vehicle's fuel efficiency!


How could it be responsible for losing so much?


Well, an engine with too much air will have trouble accelerating. Excessive or harsh accelerating uses up more gas and lowers your fuel economy.


Without enough air in the engine, a vehicle will run hot and use more fuel.


Spark Plugs

Your spark plugs provide combustion in the vehicle's engine. An engine that misfires because of old spark plugs will lower fuel efficiency.


Most spark plugs last 60,000 miles to 100,000 miles. Stay on top of when you need to replace them.


Fuel System

A bad fuel injector or fuel filter will affect the fuel's flow into the engine. Damaged or neglected fuel systems are a common cause of low gas mileage.


Air Conditioning

The more you crank your air conditioning, the more gas you use. But that doesn't mean you have to keep your air off in the heat; have it set to a reasonable temperature at a low setting. There's no need to hit the A/C button.


Exhaust System

It can be the oxygen sensor, a pipe leak, muffler, or another emission issue. Your exhaust system plays a crucial role in your fuel economy.


Make sure you have your exhaust system checked routinely by a technician.


Exhaust System Taken Out of a Car

Motor Oil

The type of motor oil you use will affect your car's fuel economy. For example, oil with low viscosity will pump through the engine a lot easier. Less resistance leads to higher fuel efficiency!


Without enough oil, the engine will run hotter. With an overheated engine, your vehicle will lose efficiency and power.


If you have too much oil, it will damage the air filter. As stated before, old or dirty air filters will decrease your fuel efficiency.


Driving Habits

Rougher driving habits will drastically lower your fuel efficiency. These habits include:

  1. Rapid acceleration

  2. Revving the engine

  3. Going over the speed limit

  4. Stop-and-go driving

Try not to overexert your vehicle with aggressive driving.