先(xian)使用(yong)(yong)(yong)(yong)木屑過(guo)一遍，然后(hou)用(yong)(yong)(yong)(yong)汽(qi)油(you)(you)(you)(you)(you)(you)(you)(you)(you)溶解，使用(yong)(yong)(yong)(yong)點清(qing)洗(xi)劑，后(hou)用(yong)(yong)(yong)(yong)水多沖沖就干凈(jing)了。機(ji)(ji)(ji)油(you)(you)(you)(you)(you)(you)(you)(you)(you)，即(ji)發(fa)(fa)動(dong)(dong)機(ji)(ji)(ji)潤(run)(run)滑油(you)(you)(you)(you)(you)(you)(you)(you)(you)，被譽(yu)為(wei)汽(qi)車的(de)(de)“血液”，能對發(fa)(fa)動(dong)(dong)機(ji)(ji)(ji)起(qi)(qi)到潤(run)(run)滑、清(qing)潔、冷卻、密(mi)(mi)封、減(jian)磨(mo)、防(fang)銹、防(fang)蝕(shi)等作用(yong)(yong)(yong)(yong)。發(fa)(fa)動(dong)(dong)機(ji)(ji)(ji)是(shi)汽(qi)車的(de)(de)心臟(zang)，發(fa)(fa)動(dong)(dong)機(ji)(ji)(ji)內(nei)有許(xu)多相互摩擦運(yun)動(dong)(dong)的(de)(de)金屬表面(mian)，這些部件運(yun)動(dong)(dong)速度(du)(du)快、環境(jing)差，工(gong)作溫(wen)度(du)(du)可(ke)(ke)達400°C至600°C。在這樣惡劣的(de)(de)工(gong)況(kuang)下(xia)面(mian)，只有合格(ge)的(de)(de)潤(run)(run)滑油(you)(you)(you)(you)(you)(you)(you)(you)(you)才可(ke)(ke)降低發(fa)(fa)動(dong)(dong)機(ji)(ji)(ji)零件的(de)(de)磨(mo)損(sun)，延(yan)長使用(yong)(yong)(yong)(yong)壽命(ming)。機(ji)(ji)(ji)油(you)(you)(you)(you)(you)(you)(you)(you)(you)，即(ji)發(fa)(fa)動(dong)(dong)機(ji)(ji)(ji)潤(run)(run)滑油(you)(you)(you)(you)(you)(you)(you)(you)(you) 英文(wen)名(ming)稱(cheng)：Engine oil。密(mi)(mi)度(du)(du)約為(wei)0.91×103（kg/m3）能對發(fa)(fa)動(dong)(dong)機(ji)(ji)(ji)起(qi)(qi)到潤(run)(run)滑減(jian)磨(mo)、冷卻降溫(wen)、密(mi)(mi)封防(fang)漏、防(fang)銹防(fang)蝕(shi)、減(jian)震緩沖等作用(yong)(yong)(yong)(yong)。市場(chang)(chang)上的(de)(de)機(ji)(ji)(ji)油(you)(you)(you)(you)(you)(you)(you)(you)(you)因其基(ji)礎(chu)(chu)(chu)油(you)(you)(you)(you)(you)(you)(you)(you)(you)不同可(ke)(ke)簡分為(wei)礦物(wu)油(you)(you)(you)(you)(you)(you)(you)(you)(you)及合成(cheng)(cheng)(cheng)油(you)(you)(you)(you)(you)(you)(you)(you)(you)兩種(植(zhi)物(wu)油(you)(you)(you)(you)(you)(you)(you)(you)(you)因產量(liang)稀少故(gu)不計)。合成(cheng)(cheng)(cheng)油(you)(you)(you)(you)(you)(you)(you)(you)(you)中又(you)分為(wei)：全(quan)合成(cheng)(cheng)(cheng)及半(ban)合成(cheng)(cheng)(cheng)。全(quan)合成(cheng)(cheng)(cheng)機(ji)(ji)(ji)油(you)(you)(you)(you)(you)(you)(you)(you)(you)是(shi)高等級的(de)(de)。機(ji)(ji)(ji)油(you)(you)(you)(you)(you)(you)(you)(you)(you)由基(ji)礎(chu)(chu)(chu)油(you)(you)(you)(you)(you)(you)(you)(you)(you)和(he)添(tian)(tian)加劑兩部分組(zu)成(cheng)(cheng)(cheng)。基(ji)礎(chu)(chu)(chu)油(you)(you)(you)(you)(you)(you)(you)(you)(you)是(shi)潤(run)(run)滑油(you)(you)(you)(you)(you)(you)(you)(you)(you)的(de)(de)主要成(cheng)(cheng)(cheng)分，決定著(zhu)潤(run)(run)滑油(you)(you)(you)(you)(you)(you)(you)(you)(you)的(de)(de)基(ji)本性(xing)質，添(tian)(tian)加劑則可(ke)(ke)彌補和(he)改善基(ji)礎(chu)(chu)(chu)油(you)(you)(you)(you)(you)(you)(you)(you)(you)性(xing)能方面(mian)的(de)(de)不足，賦予某些新的(de)(de)性(xing)能，是(shi)潤(run)(run)滑油(you)(you)(you)(you)(you)(you)(you)(you)(you)的(de)(de)重要組(zu)成(cheng)(cheng)(cheng)部分。潤(run)(run)滑油(you)(you)(you)(you)(you)(you)(you)(you)(you)基(ji)礎(chu)(chu)(chu)油(you)(you)(you)(you)(you)(you)(you)(you)(you)主要分礦物(wu)基(ji)礎(chu)(chu)(chu)油(you)(you)(you)(you)(you)(you)(you)(you)(you)及合成(cheng)(cheng)(cheng)基(ji)礎(chu)(chu)(chu)油(you)(you)(you)(you)(you)(you)(you)(you)(you)兩大類(lei)。礦物(wu)基(ji)礎(chu)(chu)(chu)油(you)(you)(you)(you)(you)(you)(you)(you)(you)應用(yong)(yong)(yong)(yong)廣泛(fan)，用(yong)(yong)(yong)(yong)量(liang)很大(約95%以上)，但有些應用(yong)(yong)(yong)(yong)場(chang)(chang)合則必須使用(yong)(yong)(yong)(yong)合成(cheng)(cheng)(cheng)基(ji)礎(chu)(chu)(chu)油(you)(you)(you)(you)(you)(you)(you)(you)(you)調配的(de)(de)產品。