因為我也不常開車(六日開),油耗很難評估
有時候整桶油是跑高速,有時候有半桶是市區
我新車3000多就開始混了
5000進廠保養,還特別請技師看電腦有沒有Error log
是沒有任何錯誤
混油後 最明顯感覺就是,滑行距離變長
加速力道比較好,尤其是機車,力道很明顯
大概有混超過3000公里了
有一次最有感的是
因為沒有帶柴油,就沒有混(先加100元92)
開回家短短10KM ,排氣管口,黑炭程度
比我跑蘇花整桶油跑完後還黑
當下我就覺得,應該一直混下去
我混油不是要了增加動力或省油
是想盡可能完全燃燒讓廢氣更乾淨
題外話
我試過機車 加5% "沙拉油" 別懷疑,就是沙拉油,
解結果是,跟加柴油一樣有力
但是會有一股淡淡的燒沙拉油的味道
不好聞,聞起來就是所謂的"糙油唉"味(台語)
加柴油後是臭油氣味降低很多
meridian wrote:
就像很多人會講"高辛烷值燃燒更完全", 但要拿出證據又拿不出來, 只能說感覺比較有力, 感覺引擎比較小聲, 感覺油耗變好...
而現在是有人講"低辛烷值燃燒更完全", 不是要不要試的問題, 重點是原理, 到底有沒有人能講得出原理來?
鼓吹增加辛烷值的人講不出原理, 難道降低辛烷值的人也一樣講不出原理? 台灣人怎麼這麼奇妙
就我的理解
辛烷值越低越容易燃燒
燃燒的速度也越快
在沒有產生爆震的前提下
辛烷值越低的確燃燒越完全
辛烷值越高越不容易燃燒
所以才用在高壓縮比的車上
以避免油氣在壓縮過程提早被點燃
但是引擎的氣壓除了跟壓縮比有關外
跟進氣壓力也有很大關係
油門踩的淺 進氣負壓大
壓縮過程中的最大氣壓也跟著變小
所以在進氣負壓大的情況
其實是可以使用較低辛烷值的汽油
以換取較快的燃燒速度來達到更完全的燃燒
Let’s say you accidentally drop a small amount of gasoline into your diesel fuel. The first thing it’s going to is depress the flash point of the diesel, which can be dangerous given that pockets of higher concentrations of gasoline can develop in a tank. So the flash point wouldn’t be consistent throughout the entire tank.
Given the large difference in flash point temperature between gas and diesel, it doesn’t take very much gasoline to depress the flash temperature significantly. As little as 1% gasoline contamination will lower the diesel flash point by 18 degrees C. This means the diesel fuel will prematurely ignite in the diesel engine, which can lead to engine damage.
Gasoline contamination can also damage the fuel pump and mess up diesel injectors. This happens because of a drop in lubrication. Simply speaking, gasoline is a solvent while diesel is an oil. Diesel has enough lubricity to lubricate the fuel pumps and the injectors. Swapping in some gasoline takes away this lubrication, leading to damage.
Beyond these, you’ll get incomplete combustion, initially characterized by large amounts of black smoke. Beyond being an aesthetic problem, the vehicle’s computer will try to compensate for this combustion lack by adjusting the fuel-air mixture. This is going to cut your power and performance considerably. And if you continue to use the fuel, you can cause real damage to the vehicle’s computer sensors by either overheating them or covering them in soot such that they can’t detect anything."
不建議



