Can Air Conditioning Affect Gas Mileage

There are many similar tests and results online but heres the bottom line. Running your cars air conditioning is the main contributor to reduced fuel economy in hot weather.

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Around town youll probably get better fuel economy if you turn the AC off and roll the windows down.

Can air conditioning affect gas mileage. Using the air conditioning to keep the car cool impacted gas mileage by a shocking 3mpg. Heating or air conditioning is a big deal in an electric vehicle for two reasons. The air conditioning system is the single largest auxiliary load on a vehicle by nearly an order of magnitudeCurrent air conditioning systems reduce the fuel economy of conventional vehicles thus incremental improvementscan have a significant near-term benefit because of the large number of new cars sold each year.

By driving 55 instead of 75 you can better your gas mileage up to 15mpg. The question is how much will it affect the mileage is it enough to warrant not using the air conditioning and are the alternatives any better. Obviously it takes more energy to run the air-con in warmer.

Air-conditioning relies on a compressor driven by the engine and the radiator fan and heater blower will run continuously while it is turned on so it will burn some extra fuel. So the AC system does use some of the fuel burnt in the engine. Automotive Repair Norfolk Programs Virginia Beach Theme Rex September 17 2015 Running your cars air conditioning like any other feature on your car that draws power will affect your gas mileage.

In a similar test performed by Edmunds using a Toyota Tundra they saw a decrease in fuel mileage of almost 10 when using the air conditioner as opposed to driving with the windows down and the air conditioner off. Operating the air conditioner on Max can reduce MPG by roughly 525 compared to not using it. Running electrical accessories eg air conditioner decreases fuel economy.

That said here are some tips to help you balance your fuel consumption with comfort. In newer cars these days this decrease is less. The air conditioner draws its power from the engine which uses some gas but with todays cars this use of gas is minute.

But as 10 minutes use every few weeks is all thats needed in cold weather the cost is negligible. Air conditioner can decrease fuel economy in some vehicles up to 20. The AC in your car can decrease the fuel economy of your car up to 20 in some vehicles but it depends on the type.

Keeping the windows open on the other hand affected gas mileage so little that it. Well it depends on the speed. As a general answer a Consumer Reports study found that yes running the AC does reduce gas mileage.

Slow down to save more. You probably already know that using the air conditioning and heating systems can significantly affect gas mileage during the summer and winter months. This wind resistance requires extra fuel so you end up burning almost equal amounts of gas.

In most cars the air conditioners compressor is powered by a drive belt on the engine. Air Conditioning Affects Gas Mileage. First the total amount of energy onboard is dramatically less than whats available in a typical gasoline car.

Driving on hilly or mountainous terrain or on unpaved roads can reduce fuel economy. But that usage amount is very small in most modern cars. They found no measurable effect on fuel mileage.

August 10 2010 at 500 am Chad Upton 12 comments. However in older cars especially the ones with low engine power. Generally using the air conditioner burns up gas so use it wisely.

Air conditioning burns a lot of gas but if we roll down the windows when we are driving fast there is an increase in drag on most cars. Driving with the air conditioner is more fuel efficient than driving with the windows down. When the air conditioner is activated the compressor adds resistance to.

For high fueleconomy vehicles current air conditioning systems have a. Avoid driving around with objects on your roof. The EPA test assumes vehicles operate on flat ground.

Other factors such as aerodynamics the weight of the car and the type of terrain can decrease your gas mileage in ways you might not have expected. By Chad Upton Editor. However keeping passengers comfortable in hot weather by rolling down the windows or using the air conditioning AC can reduce fuel economy.

Monitoring your AC use can result in a slight change in your vehicles gas mileage and there are plenty of other tips to increase fuel economy. The air conditioner uses power from the engine which runs on gas so it will use more gas when the AC is on.

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