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標題: [冷知識分享] 小心喔!!!熱車時間越長引擎掛得越快 [打印本頁]

作者: marco_lee85 時間: 2008-4-6 02:22 AM 標題: 小心喔!!!熱車時間越長引擎掛得越快

小心喔!!!熱車時間越長引擎掛得越快早上要不要熱車不知熱與不熱有沒有差別.......www3.tvboxnow.com6 C* i+ C) ?+ S0 g

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多數的車主可能都會以為早上第一次行駛前的熱車是必需的，否則好像引擎很快就掛了。

其實這個觀念是錯誤的；熱車時間愈長，你的引擎掛得愈早!相信各位若翻開你的車主使用手冊，

其中若有談到熱車的部份，多數手冊上都會告訴你，發動後不必熱車，直接行駛即可。
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在德國規定車主在發動汽車之後必需立刻行駛，否則將遭到罰款，原因是因為熱車的動作

將因燃燒不完全所排放的廢氣，造成環坑境污染。引擎的潤滑是當到達正常工作溫度及油壓時，
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潤滑系統處於最佳狀態。然而當引擎在沒有負荷的狀態下，溫度的爬升是相當緩慢的，也就是說，1 F9 V* E8 n& ?3 F( b4 R

引擎需要較長的時間才能達到正常的工作溫度；同時由於熱車時阻風門會使得汽油混合比增濃，

燃燒不完全的廢氣除了將造成環保上的污染外，同時在與機油混合之後將產生強酸，長時間的怠度

熱車，不僅增加引擎磨損的機率，也會使得積碳現象發生，並且將造成機油的快速酸性劣化，縮短機油的壽命。/ d( }5 O( f; o. C4 }! D" u* J
事實上停車時的熱車通常都只能讓引擎的溫度提高，但其他各機件卻仍然處在冷車狀態，公仔箱論壇) m. ~6 N1 i( Z/ M0 E
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驅動系統的熱車就比引擎熱車來得重要，但是驅動系統若你不行駛它是不會熱的。4 k) l# h3 l, ]- S$ m

因此正確的方式應是在汽車發動之後，只要機油燈熄滅即可行駛，此時油壓已達正常壓力，

但你仍不能大腳油門，因為引擎及驅動系統都尚未到達正常的工作溫度，你應該先讓引擎在2000轉之內慢慢地行駛，待水溫到達正常的溫度時才可大腳油門。tvb now,tvbnow,bttvb. x4 t& u; h/ \3 B* p, S, A2 Q

事實上在行駛當中引擎的磨損是極輕微的，大約有90%以上的磨損其實是發生在啟動的瞬間，

因此減少啟動馬達啟動的時間，才是真正保護愛車之道；至於停在路邊熱車，除了將造成環境污染、

增加磨損、使引擎積碳及讓機油酸性劣化外，真是百害而無一益

作者: troyfoo 時間: 2008-4-6 10:46 AM

please do more research b4 you are gonnd say sth stupid like this
better check out what the pro do e.g. F1, DTM, WRC or even the nascar no one is gonna do what you said 2 [, ?! ^. {& T) S _
But the turth is I bleive that you are from some southern asia which means that you wount have a snow in the winter that's why you can't really understand
the reason why
since you got super cold weather outside (-0C or below) your radiator fluid and engine oil is not really at the best working condition. They are more thick than normal that's y you siad about the emission will make sense but not the reason that you are giving above
also If you keep driving yuor car out in a slow speed it will be a better idea in most asia countries but not even to anywhere that will snow in the winter
becasue you are actually startign to let the wind to blow at your radiator to cool down your radiator fluid (which is very cold already) then it will actually takes you more time to heat up the engine and make it burn more gas and more emission to be called as pollition TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。8 x: n X' X: n1 i; K
so please lean before you tell don't just copy someone els idea and assume it's good for yiou * R4 y' X3 S! g

作者: jho808 時間: 2008-4-8 12:22 PM 標題: 回復 #2 troyfoo 的帖子

totally agree what u said, becoz i am from Canada .....

作者: kikolski 時間: 2008-4-14 07:41 AM

究竟真相系咩啊?

作者: jjwah 時間: 2008-7-8 10:47 PM

多謝分享:019:

作者: Evilvirus 時間: 2008-7-14 09:35 AM 標題: 回復 2# 的帖子

totally agreed .. it's impossible to drive in the winter if u don't heat up ur car for awhile .. especially if u don't have indoor parking

作者: vanc890 時間: 2008-7-14 11:19 AM

i think the original poster is right. there is no need to idle after starting the car. just wait for 5 seconds after the rpm is stable then you are all set to go.. just take it easy with the car for the first few miles.. i used to live in Boston and i drove there for 3 years.

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