Due to the light weight of small displacement vehicle, it means that only the small traction force generated by less fuel consumption can overcome the resistance brought by its weight. Under normal circumstances, the fuel consumption of 100 km will be very low. But in winter, as mentioned above, the increase of grease viscosity will require additional fuel work to overcome the resistance, and the heat insulation also requires additional fuel consumption. The engine of small displacement vehicle is smaller, lighter, and the cylinder wall is thin. The high temperature loss in the cylinder will be relatively easy, and the heat insulation fuel consumption will be more obvious.

　　同時由于平時燃油消耗量較低，冬季即使燃油消耗量增加不到1升，但相對燃油消耗量也可能增加10%以上甚至20%，增幅會顯得非常大。冬季石油消費為何“熱遙高”?位移越小，越明顯?不能傷害!

　　At the same time, due to the low fuel consumption at ordinary times, even if the fuel consumption increases by less than 1 liter in winter, the relative fuel consumption may increase by more than 10% or even 20%, with a very large increase. Why is the oil consumption "hot and high" in winter? The smaller the displacement, the more obvious it is? No harm!

　　正是由于這個原因,大排量的汽車燃料消耗增加不是很明顯,1升油只會增加幾個百分點,和大排量的汽車,發動機氣缸壁厚比小排量的車,所以熱損失會相對較慢,大位移,產生的熱量也很高。冬季石油消費為何“熱遙高”?位移越小，越明顯?不能傷害!

　　It is for this reason that the increase of fuel consumption of vehicles with large displacement is not very obvious. One liter of oil will only increase by a few percentage points. For vehicles with large displacement, the wall thickness of engine cylinder is smaller than that of vehicles with small displacement, so the heat loss will be relatively slow, large displacement, and the heat generated will be very high. Why is the oil consumption "hot and high" in winter? The smaller the displacement, the more obvious it is? No harm!

　　其實冬季的油耗比夏季略高是有一定原因的，而且不止一個，是由各種綜合因素造成的。

　　In fact, the fuel consumption in winter is slightly higher than that in summer for some reasons, and there are more than one, which is caused by various comprehensive factors.

　　1. 熱車好長時間了

　　1. It's been a long time since the car was hot我相信很多車主都有一個早上熱車的好習慣，但是盲目的等待車速降到正常值或者水溫到正常，這等于在和他們的錢包。事實上，我國大部分地區的車主都可以在車輛啟動半分鐘左右來齒輪傳動，然后一個擋后再正常行駛一段距離。而對于一些北方城市來說，冬季太冷的時候可以適當延長熱車時間。此外，當水溫過低時，發動機會告訴噴油器要噴更多的燃油，所以如果你的通勤時間很短，而且冬天的寒冷天氣讓水溫很難上升到正常，你的車肯定會消耗更多的燃油。冬季石油消費為何“熱遙高”?位移越小，越明顯?不能傷害!

　　I believe that many car owners have a good habit of hot car in the morning, but blindly waiting for the speed to drop to normal or the water temperature to normal, which is equivalent to working with their wallets. In fact, most of the car owners in most areas of our country can start the car for about half a minute to gear, and then drive for a normal distance after a gear. For some northern cities, when it's too cold in winter, the hot car time can be extended appropriately. In addition, when the water temperature is too low, the engine will tell the fuel injector to spray more fuel, so if your commute time is very short, and the cold weather in winter makes it difficult for the water temperature to rise to normal, your car will definitely consume more fuel. Why is the oil consumption "hot and high" in winter? The smaller the displacement, the more obvious it is? No harm!

　　2. 熱效率較低

　　2. Low thermal efficiency

　　一般來說，發動機工作時需要保持常溫環境，大約80°C~90°C。如果溫度過高，發動機的冷卻系統會自動增加水循環速度，增加散熱，帶走多余的熱量。否則，冷卻水的循環速度就會降低，以保持必要的溫度。這是發動機更基本的冷卻原理。在冬天，發動機需要保溫而不是冷卻。由于空氣流動的影響，發動機的溫度不容易維持在80℃左右，這將增加燃油噴射，改變“點火提前角”來維持溫度。與此同時，寒冷天氣下汽油的熱效率遠低于夏季，這使得冬季寒冷天氣下的燃油消耗量高于其他季節。冬季石油消費為何“熱遙高”?位移越小，越明顯?不能傷害!

　　Generally speaking, the engine needs to maintain a normal temperature environment, about 80 ° C ~ 90 ° C. If the temperature is too high, the cooling system of the engine will automatically increase the water circulation speed, increase the heat dissipation and take away the excess heat. Otherwise, the circulating speed of the cooling water will be reduced to maintain the necessary temperature. This is the basic cooling principle of the engine. In winter, the engine needs to be insulated rather than cooled. Due to the influence of air flow, the engine temperature is not easy to maintain at about 80 ℃, which will increase fuel injection and change the "ignition advance angle" to maintain the temperature. At the same time, the thermal efficiency of gasoline in cold weather is far lower than that in summer, which makes the fuel consumption in cold weather in winter higher than that in other seasons. Why is the oil consumption "hot and high" in winter? The smaller the displacement, the more obvious it is? No harm!

　　電池的效率很低

　　The efficiency of the battery is very low冬天的白天變短了，夜晚變長了，車前燈比夏天開得長。另外，由于冬季溫度較低，電解液化反應緩慢，容易造成電池損耗。還有就是冬天開始冷，為了克服電阻對電力的更大需求。而發動機的啟動需要更多的燃料轉換電能來給電池充電，所以相對來說也是燃料消耗的一個因素。冬季石油消費為何“熱遙高”?位移越小，越明顯?不能傷害!

　　The days are shorter in winter, the nights are longer, and the headlights are longer than in summer. In addition, due to the low temperature in winter, the electrolytic liquefaction reaction is slow, which is easy to cause battery loss. There is also the beginning of cold winter, in order to overcome the resistance of the greater demand for electricity. The start-up of the engine requires more fuel to convert electric energy to charge the battery, so it is also a factor of fuel consumption. Why is the oil consumption "hot and high" in winter? The smaller the displacement, the more obvious it is? No harm!

　　4. 暖空氣也會增加燃料消耗

　　4. Warm air will also increase fuel consumption天氣寒冷，打開暖空氣也會增加汽油的油耗，這比夏天打開空調消耗的汽油多得多。有些司機覺得暖空氣是消耗發動機的熱量，不會增加油耗。其實，冬季發動機為了保持溫度，大多處于小周期;當你打開熱空氣時，車內的冷空氣會迅速流過堆芯表面，本質上是給發動機的冷卻循環增加了一個的散熱器!你可以想象它的效果。冬季石油消費為何“熱遙高”?位移越小，越明顯?不能傷害!

　　In cold weather, turning on warm air will also increase the fuel consumption of gasoline, which is much more than turning on the air conditioner in summer. Some drivers feel that warm air consumes the heat of the engine and does not increase fuel consumption. In fact, in order to maintain the temperature of the engine in winter, most of the engine is in a small period; when you turn on the hot air, the cold air in the car will quickly flow through the core surface, essentially adding an efficient radiator to the cooling cycle of the engine! You can imagine its effect. Why is the oil consumption "hot and high" in winter? The smaller the displacement, the more obvious it is? No harm!

　　5. 長夜短晝很重要

　　5. Long night and short day are very important燃油消耗也隨著天氣的增加而增加，冬季天黑得早，在工作中，一般都需要打開前大燈，前大燈的電力供應是由發動機油燃燒供應的，這也會直接影響愛車的油耗。冬季石油消費為何“熱遙高”?位移越小，越明顯?不能傷害!

　　Fuel consumption also increases with the increase of weather. It is dark early in winter. In work, the headlights generally need to be turned on. The power supply of the headlights is supplied by the engine oil combustion, which will directly affect the fuel consumption of your car. Why is the oil consumption "hot and high" in winter? The smaller the displacement, the more obvious it is? No harm!

　　6. 可憐的油流

　　6. Poor oil flow

　　人在冷熱天氣中變化，汽車也一樣。如果注意不到位，增加的油耗量就小，對機械部件的損壞就大。

　　People change in hot and cold weather, so do cars. If the attention is not in place, the increased fuel consumption will be small and the damage to mechanical parts will be large.

　　冬天來的時候，我們可以選擇低溫流動性較好的油，比如5W或0W的油，對于大部分年份都不舊(3-5年)，車的狀況很好，冬天來的時候，選擇低溫流動性較好的油就可以了。

　　When winter comes, we can choose the oil with better low-temperature fluidity, such as 5W or 0W oil, which is not old for most years (3-5 years), and the car is in good condition. When winter comes, we can choose the oil with better low-temperature fluidity.

　　以上是濟南寶馬汽車專修小編為大家介紹的相關內容，想要了解更多內容，歡迎訪問網站：http://www.zhongzaojixie.comThese are the relevant contents introduced by Jinan BMW special repair group. To learn more, please visit the website: http://www.lutongqixu.com