An Auto Shop Advises: Is it possible to get better MPG with the A/C running?

As summertime continues to heat up and gas prices start to rise, some drivers may have to make a difficult decision as to: whether or not to run the air conditioning while driving? An auto center would like to offer some professional advice. Please read more to find out what this auto shop has to say:

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Most people think that turning the A/C off might be more cost effective than driving with it running. However, what a lot of people don't know is that driving with the windows down can have a similar effect on the engine, and subsequently, the mileage. When the windows are down while driving, more drag force is created, causing the engine to exert more energy to propel the car forward, and thus reducing gas mileage.

So if running the A/C is more cost-efficient, then why does it seem like your tank is constantly being drained and you are headed to an auto center to fill up or for an A/C service?

Consider these three issues when deciding to use, or not to use, the A/C:

1. Size of Vehicle: While it's true that most small cars with smaller engines (like 4 cylinders) have better overall gas mileage, they generally have to work harder to generate the electricity needed to run the A/C. In this case, it could be more efficient to drive with the windows cracked slightly, and with the fan going, instead of the A/C.
2. Type of Trip: If you're planning to do a lot of stop-and-go city driving, it's more fuel efficient to leave the air off and the windows down. Watch your speed and drag force, however, as it affects engine performance and MPG.
3. Frequency of Maintenance: Like every other part of your car, the air compressor and system that works to cool down your car must be regularly serviced at your auto shop in order to keep it performing most efficiently. Regularly changing the air filter will keep your A/C running without unneeded trips to your auto shop for repairs. Ask your auto center about air conditioning service plans or specials.

Tip to Remember: You can minimize running the air conditioner by parking your car in shaded areas, crack the windows open slightly, and allow the car to cool off before entering.

Worried about your vehicle's A/C? Contact our ASE Certified Technicians at Wentland Diesel Service by calling 541-938-3875 or go on-line at http://www.wentlanddiesel.com/ for more information. Our one-stop auto center provides car and truck repair, including diesel fuel injection service, to the vehicle owners in Milton-Freewater, OR, Walla Walla, WA, Pendleton, OR and surrounding areas.