![]() The additional weight of items left in a vehicle requires more fuel to propel your vehicle. For information on how cold weather affects fuel economy, see ’s Fuel Economy in Cold Weather page. Trip planning can reduce the distance you travel and the amount of time you drive with a cold engine. Engine and transmission friction increases with cold engine oil and other drive-line fluids, making the engine less efficient. Shorter trips can use twice as much fuel as one long, multi-purpose trip that covers the same distance, when the engine is warm and at its most fuel-efficient temperature. Combine TripsĬombining trips can save you time and money by avoiding unnecessary stopping and starting of your vehicle, which can be an issue in colder climates where it takes longer for your engine to reach its most fuel-efficient temperature. Driving more sensibly is also much safer for you and others. Obeying the speed limit, accelerating and braking gently and gradually, and reading the road ahead can improve the fuel economy of your vehicle by 15%–30% at highway speeds and 10%–40% in stop-and-go traffic. ![]() Using cruise control on the highway can help drivers maintain a constant speed vehicles use the most energy when accelerating. ![]() Reducing your speed by 5 to 10 mph can improve fuel economy by 7%–14%. For light-duty vehicles, for example, every 5 mph you drive over 50 mph is like paying $0.18 more per gallon of gas (based on the price of gas at $2.63 per gallon). While vehicles reach optimal fuel economy at different speeds, gas mileage usually decreases rapidly at speeds above 50 miles per hour (mph). You can also find out how long it would take to walk around the world.Speeding increases fuel consumption and decreases fuel economy as a result of tire rolling resistance and air resistance. If you would like to work out how many steps it might take you to walk one of these distances, check out our Miles to Steps Calculator. The answer is 125 hours (7500 minutes) at a normal walking pace. The final entry in our chart above gives us an answer to the question: "How long would it take the Proclaimers to walk 500 miles" (from their hit song). So at just 2.1mph, it would take an average 75-year-old nearly half an hour to walk a mile (28 minutes and 34 seconds), while a 23-year-old is likely to walk at a speed of 3mph, taking only 20 minutes to walk a mile. ![]() Then, once we reach our fifties, walking speed slows down again. ![]() You might be surprised to learn that sprightly twenty-somethings actually tend to walk at a slower pace than their older thirty-something and forty-something counterparts. No, we don't mean the incredible phenomenon by which it takes three hours to walk just two blocks with a toddler (so many interesting cracks in walls to look at!) Individual health will of course have an impact on how long it takes to walk a mile, but more general factors such as age, gender and pace can be accounted for in your planning. When you're planning a journey, a day out, or preparing for a sponsored walk or marathon, you may want to calculate how many minutes it takes to walk a mile. Some people will be faster or slower than this, and walking speed can even be influenced by age and gender, as well as fitness level. Typically, adults walk at a speed of 3 to 4 miles per hour, and therefore walk a mile in around 15 to 20 minutes. By Becky Kleanthous | Last update: 08 October 2020 ![]()
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