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阿嘉5011 wrote:
好像有PORSCHE A40的認證都可以吧.
其實車要加什麼油， 只要車主喜歡， 應該都可以！！ 只是如果要求原廠保固，避免麻煩， 那就請遵守原廠建議來服用吧！！ 包括換油里程，燈沒亮不用開來保養！！！ 如果是ＣＰＯ 的車， 原廠可以保固到１６００００ ＫＭ， 這里程應該夠了吧！！！！
其他地區我不知道，但是美加的經銷商 及 徳國 Stuttgart ＆ Leipzig 的兩地生產工廠，只用一個牌子，新車只用兩種機油號數． ５Ｗ３０ ＆ ０Ｗ４０，老汽冷則有１５Ｗ５０可供選擇．或許公司有買他的股票吧？？？
但憑良心說，它的機油我用３０年了，我是體會不出衰退等等，也沒有一顆引擎需要動開心手術的！！！每一輛車的引擎室都有貼紙說＂建議 ＂使用 Ｍ牌機油
連 Leipzig 工廠賽道的領導車，都不忘補張M牌貼紙！！
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vicence wrote:
是嗎?無論E92 M...(恕刪)
http://www.bmwusa.com/Standard/Content/Owner/OwnersManualVideos.aspx?namodelcode=1137
這上一棟樓已破案(新 M系列 用油)，手冊載明新款都不是10w60了
所有m系列都如此
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tentec wrote:
http://www...(恕刪)
P.227內容節錄如下
Specified engine oils
Your service center can advise you on which engine oils have been approved by the manu- facturer of your vehicle.
The engine oil quality is critical for the life of the engine.
Approved oils can be identified by the following specification:
Gasoline engine
Preferred: Alternatively:
BMW Longlife-01 BMW Longlife-01 FE
BMW Longlife-98
Approved oils belong to the following viscosity classes: SAE 0W-40, SAE 0W-30, SAE 5W-40 and SAE 5W-30.
Alternative oil types
If approved oils are not available, you can use quantities of up to 1 US quart/1 liter of another oil with the following specifications:
API SM or higher
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像是啟動時與達不到適當工作溫度
想想如果無意間誤導別人，還吃的下飯嗎?
或許自己也是被誤導，可能的話
修正文章是好辦法
這有ackdpe0776大 網友節錄翻譯(在14樓)
http://forum.jorsindo.com/thread-2362111-1-1.html
We see here that a typical:
• SAE10W-30 engine oil is in the design viscosity between 92° C and 107° C
• SAE 30 is in the design viscosity between 94° C and 106° C
• SAE 15W-40 is in the design viscosity between 108° C and 121° C
• SAE 20W-50 oil is in the designed viscosity range between 118° C and 130° C.
Note that this means an engine with 20W-50 oil is outside of its ideal range of protection from the time it is started until the bearings reach 118° C, causing excessive wear.
When you get up around operating temperatures the following graph shows:
• The 10W-30 mineral oil in the ideal viscosity range between 98° C and 111° C.
• The Amsoil 10W-40 in the ideal viscosity range between 106° C and 121° C.
• The Delo 5W-40 in the ideal viscosity range between 112° C and 126° C.
• The Mobil 5W-40 in the ideal viscosity range between 108° C and 122° C.
氧化與剪力對黏度的影響
來源原始pdf檔，論述很完整。
Selection of the Right Motor Oil for the Corvair and other Engines
By Richard Widman
http://www.widman.biz/uploads/Corvair_oil.pdf
這有Richard Widman相關網站，內容豐富
http://www.widman.biz/English/index.html
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