It is that time of the year when many motorists let their vehicle “warm up” or idle before driving. In fact, today’s modern cars are ready to drive in cold temperatures without excessive idling.
“Unless you are trying to defrost the windshield or warm the interior of your car, idling is not required for today’s vehicles,”. “In most cases, idling longer than 30 seconds is unnecessary. The best way to warm up your car’s engine is to drive gently at the start. Remember, a vehicle gets zero miles per gallon when idling and the result is lower fuel economy and wasted money.”
The idea of idling before driving dates back to when cars were built with carburetors. With new fuel-injection technology, complex computer systems and thinner synthetic oils, drivers don’t need to warm up their cars before hitting the road.
According to the Environmental Protection Agency , “When a car idles for more than 30 seconds, it has several negative effects, such as increasing air pollution unnecessarily, wasting fuel and money, and causing excessive wear or even damaging a car’s engine components, including cylinders, spark plugs, and the exhaust system. Contrary to popular belief, idling isn’t an effective way to warm up most car engines.”
Let we see some of the Myths and Reality about engine idling
Myth 1 : Cars should run in an idling mode for several minutes before being driven.
Wrong. Modern engines do not need more than a few seconds of idling time before they can be driven safely. Moreover, the best way to warm up a car is to drive it, since that warms up the catalytic converter and other mechanical parts of the car, in addition to the engine.
Myth 2 : Each time you start your car you waste more gasoline than if you let it idle
Wrong. Automotive engines do not operate efficiently when they idle. Experts say there is a maximum 10 second break-even rule. If you are idling longer than 10 seconds, both you and the engine are better off if the engine is turned off and restarted.
Myth 3: Repeatedly restarting your car is hard on the engine and quickly drains the battery
Wrong. Frequently restarting your engine does negligible damage to the engine and does not drain modern batteries excessively. In fact, the opposite is true; idling an engine forces it to operate in a very inefficient and gasoline-rich mode that, over time, can degrade the engine’s performance and reduce mileage.
When not actively driving, people tend to idle their cars largely for one of two reasons: either to warm up the engine before driving or to avoid wear and tear on the engine in situations that require frequent restarting, such as drive-through service lines, rail crossings, car wash lines, carpool lines, and departure from concerts and sporting events, or while talking to friends or using the cell phone. By understanding the effects of idling and reducing the practice, you can improve your car’s performance, save money, and reduce needless carbon dioxide emissions.
See Also :