【冷卻液】如何選擇車輛發動機水箱冷卻液 防凍水箱冷卻液選購

1、選購正品

汽車配件市場上的防凍水箱冷卻液種類繁多，許多假冒偽劣產品混入其中，有些所謂的“防凍液”，是用乙醇和水混合后添加色素制成；沒有加任何防腐劑、阻垢劑等添加劑，沸點在90oC左右，腐蝕性較強，易導致發動機過熱現象的發生。分辨防凍液真偽的簡單方法是：優質防凍水箱冷卻液顏色醒目、清亮透明和無異味；用燒杯加熱防凍水箱冷卻液，用溫度計測量其沸點，凡沸點不足100oC的為劣品。冷卻液十大品牌

2、牌號選擇

防(fang)(fang)(fang)(fang)凍(dong)(dong)(dong)(dong)水箱(xiang)冷(leng)卻液的(de)牌(pai)(pai)號(hao)一般為(wei)其冰(bing)點值，選用(yong)(yong)時應(ying)(ying)結合使(shi)用(yong)(yong)地(di)(di)(di)(di)區和(he)季節確定，原則(ze)上加水稀釋(shi)液的(de)冰(bing)點值應(ying)(ying)低(di)于(yu)所在地(di)(di)(di)(di)區最低(di)氣溫(wen)10oC左右。不同(tong)地(di)(di)(di)(di)區的(de)選購參考值有所區別，長(chang)江以南地(di)(di)(di)(di)區可全年選用(yong)(yong)牌(pai)(pai)號(hao)為(wei)-25號(hao)的(de)防(fang)(fang)(fang)(fang)凍(dong)(dong)(dong)(dong)液，如長(chang)城(cheng)(cheng)牌(pai)(pai)多效防(fang)(fang)(fang)(fang)凍(dong)(dong)(dong)(dong)液FD-1；一些地(di)(di)(di)(di)區還可選用(yong)(yong)冰(bing)點值為(wei)-15oC的(de)水箱(xiang)冷(leng)卻液；長(chang)江以北(bei)地(di)(di)(di)(di)區、東北(bei)地(di)(di)(di)(di)區和(he)西北(bei)地(di)(di)(di)(di)區應(ying)(ying)選用(yong)(yong)為(wei)-35～-50號(hao)的(de)防(fang)(fang)(fang)(fang)凍(dong)(dong)(dong)(dong)液，如長(chang)城(cheng)(cheng)牌(pai)(pai)多效防(fang)(fang)(fang)(fang)凍(dong)(dong)(dong)(dong)液FD-2、FD-2B、FD-2A、FD-3。注意，不同(tong)廠家、不同(tong)牌(pai)(pai)號(hao)的(de)防(fang)(fang)(fang)(fang)凍(dong)(dong)(dong)(dong)液不能(neng)混合使(shi)用(yong)(yong)。

3、加水稀釋

為了便于運輸與儲藏，有些防(fang)凍(dong)水(shui)(shui)箱冷卻液(ye)加工成濃縮液(ye)狀。使(shi)(shi)(shi)(shi)用(yong)時必須加水(shui)(shui)稀釋，才(cai)能(neng)取得最(zui)佳(jia)防(fang)凍(dong)效果(guo)。最(zui)好使(shi)(shi)(shi)(shi)用(yong)去離子水(shui)(shui)或蒸餾水(shui)(shui)稀釋，不(bu)得已時也(ye)可(ke)使(shi)(shi)(shi)(shi)用(yong)冷卻后的開(kai)水(shui)(shui)稀釋，切(qie)不(bu)可(ke)使(shi)(shi)(shi)(shi)用(yong)自來(lai)水(shui)(shui)、地(di)下(xia)水(shui)(shui)或地(di)表水(shui)(shui)稀釋。否則(ze)，易導致水(shui)(shui)垢的產生或加重對(dui)冷卻系統的腐蝕作用(yong)。加水(shui)(shui)稀釋的比(bi)例，應依據(ju)防(fang)凍(dong)水(shui)(shui)箱冷卻液(ye)外(wai)包(bao)裝(zhuang)上的使(shi)(shi)(shi)(shi)用(yong)說明，結合使(shi)(shi)(shi)(shi)用(yong)地(di)區(qu)和(he)季節確定。