Should you turn off AC when driving uphill?

Car Talk: No need to turn off AC when going uphill.
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Is it better to drive with AC on or off?

Letting hot air out of the cabin first will put less demand on the AC and help your vehicle cool faster. Don't idle with the AC running before driving. Turn the AC on after you begin to drive or after airing out the cabin briefly. Most AC systems will cool the vehicle faster while driving.
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Why do street racers turn off AC?

When drag racing you might be asked to turn off your AC (by the track officials) because it drips water on the track. So its pretty common knowledge to turn your AC off when drag racing at a track. In addition, it could also slightly reduce power.
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Should I turn off AC traveling?

To wrap up, it would be wasteful to keep your ac on at its normal temperature while on vacation and harmful to turn it off completely. Instead, turn the AC temperature up while your away to prevent damage to your home and maximize your energy savings.
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Does AC work better when car is moving?

Your car air conditioning works much better when you're actually driving because the faster the engine turns, the faster the AC compressor runs, which lets the system cool more effectively. Don't waste time and gas by letting your car run before you go.
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Never Do This to Your Car’s AC System



Is it bad to turn the AC on while driving?

In a word, yes, it's okay to drive with the air-conditioner off. Your car's A/C compressor is an accessory, merely an add-on to your car's engine. Whether it's on or off, your car's engine will run fine. Occasionally not using it won't harm it.
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How long can I keep my car AC on while my engine is running but car is parked?

As long as the engine is running and you aren't running low on fuel, you can keep your car idling with the AC on for as long as you'd like. However, you will want to avoid doing this with the engine off, as this will use up almost all of your battery power in a short time, leaving you in need of a jumpstart.
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Is it better to turn AC off or up?

Ultimately, all the time spent turning on and off adds up. Your AC will actually run longer overall if it is left on all day instead of being shut off. If you turn it off for part of the day, it runs less and results in more energy savings for you.
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When should I turn off my air conditioner?

The only time you might consider turning off your air conditioner is when there is a lot of lightning nearby. Shutting off your system may help protect your system from a power surge, but you should be sure to turn your system back on as soon as the storm passes.
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At what temperature should you turn off AC?

The general rule of thumb is that you should never run an air conditioner at 58 degrees F or lower unless you understand the system well enough to know it is designed to be run at lower exterior temperatures than most models or can be run with the heat exchanger disabled.
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Does no AC make car faster?

RAY: Yes it does, and no you won't. It does provide a power boost, and it does not harm the car.
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Does AC rob horsepower?

Your car's AC system is powered by the engine

When the AC system kicks on, you might notice that the engine RPM increases a little. According to Your Mechanic, the car does this in order to offset the power drawn by the AC system, so there's no doubt that the system robs your engine of horsepower when it's activated.
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How do Nascar drivers pee during race?

“Well, you do go to the bathroom,” he told Fox Sports. “Yeah, so if you can hold it, you hold it. If you can't hold it, you go.” However, while everyone reacts differently on the racetrack, Earnhardt Jr.
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Does driving with AC on use more fuel?

An air-conditioning (a/c) system can increase fuel consumption by up to 20% because of the extra load on the engine. The actual load depends on the vehicle's interior size, the outdoor temperature and other conditions.
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Does AC on high use more gas?

But how does AC affect gas mileage? With the AC on, you are likely to spend 5% per mile. This, too, depends on your car's model and what you do when AC is on. If a driver at high speed uses about 10% of gas with the AC on, a slow driver will spend more.
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When should I turn on the AC in my car?

* Switch on the AC only after starting the engine. Likewise, shut down the engine after switching off the AC. * If the car is parked under the sun, do not switch on the AC immediately. Open all the doors and let off the hot air accumulated inside.
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Why you shouldn't turn your AC on and off?

Turning your air conditioner in and off forces it to run at lower speeds for shorter periods, which ends up worse for you because now you have both a hot house and a high energy bill. It also adds extra strain on your unit, which can age it prematurely, resulting in you needing an emergency AC replacement.
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Is it more expensive to turn the AC on and off?

It may seem like a waste of energy to turn your A/C on and off, but doing so actually saves you a fair amount of money, Amann says. "Air-conditioning systems run most efficiently when they're running at full speed," she explains.
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Is it cheaper to keep the AC on all day?

In general, it is cheaper to leave the AC on all day during very hot temperatures. However, it's not efficient to keep it on full blast all the time. Your exact results may vary depending on your AC system. So, it's best to consult a professional if you aren't sure about how to lower your energy bills.
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Should I turn off air conditioner before turning off car?

Below, we'll dig a little deeper into that piece of advice and the reasoning behind it. In short, no, you do not have to turn your air conditioning off before turning off your vehicle. That being said, it never hurts to disable electrical systems, including the fan, before switching off the ignition.
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What is the most efficient way to use air conditioning?

Run your air conditioner on the lowest setting required and turn the ceiling fan on. This way, cool air will spread across a wide area, maintaining a comfortable environment. Instead of choosing between an air conditioner and a fan, it's best to combine the two for maximum comfort and efficiency.
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Does the AC drain a car battery?

Turning on the AC puts an additional load on the entire system resulting in the deficiency in the charging system further draining the battery.
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Does it hurt a car to idle with the AC on?

To answer your question having the AC ON while idling will hurt the engine if the engine can't maintain a recommended operating temperature, no cold weather can stop an engine from overheating without a radiator system.
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Can I sleep in car with engine on?

No, it's not safe to sleep in your car with the engine running. Leaving your car engine turned on while sleeping could lead to dangerous exhaust fumes containing carbon monoxide entering the vehicle.
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Can you turn on the AC while the car is moving?

Actually, this is a trick question. You cannot run the AC without the engine running. The air conditioner compressor and clutch are operated by the serpentine belt that runs your other accessories (your alternator, for instance). If the engine isn't running, then the belt isn't turning.
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