Answer
Rage tururi ta amfani da abubuwan kaushi na chlorinated (kamar Trichlorethylene, ko da yake an tsara shi) yana da matukar tasiri don cire mai da mai da mai daga matsewar zoben riƙon karkace saboda ƙarancin tashin hankali da ƙarfin ƙarfi. Koyaya, tsabtace ruwa yana zama ma'aunin masana'antu saboda ƙa'idodin muhalli. Don ƙarfe mai ƙarfi na carbon (SAE 1070-1090), tsaftace ruwa yana buƙatar matakin bushewa mai ƙarfi da ƙari na masu hana tsatsa don hana 'tsatsawar walƙiya' kafin a shafa murfin phosphate (zinc ko manganese). Rufin phosphate yana ba da fili mai ƙyalli wanda ke inganta riƙe mai don lubrication kuma yana ƙara kariya ta lalata, wanda ke da mahimmanci ga zoben da aka yi amfani da su a cikin isar da motoci.