MDH-40 famfo ne gas da ruwa hada famfo jerin kayayyaki, cewa shi ne kawai m sassan da bakin karfe kayan da aka yi. Gas-ruwa hada famfo mai sha ruwa iya shan gas don amfani da mummunan matsin lamba tasiri, don haka babu bukatar amfani da iska kwamfuta da kuma yanayi injector. Babban saurin juyawa na famfo mai juyawa yana haɗa ruwa da gas don haka babu buƙatar mai haɗuwa da mai haɗuwa. Saboda haɗuwa da matsin lamba a cikin famfo, gas da ruwa suna narkewa sosai. Don haka babu buƙatar manyan tankuna masu matsin lamba ko hasumiyar amsawa mai tsada don samar da mafita mai yawa. Ana amfani da su ga m ruwa, sanyaya ko high zafi ruwa, low viscosity ruwa, lalata ruwa da kuma m gudu da kuma dauke da gas ruwa sake zagayowa, da kuma high zafi mai gudanarwa a cikin 350 ℃, sake zagayowa da zafi ruwa a cikin 180 ℃, low zafi -100 ℃ anti-freeze ruwa da sauran kafofin watsa labarai. Za a iya daidaita mitar juyawa, fashewa, musamman wutar lantarki da sauran inji bisa ga abokin ciniki bukatun.