Shin 5W40 koyaushe shine mafi dacewa mai?
Abubuwa
Man injin da aka yiwa alama da alamar 5W40 mai yiwuwa nau'in man injin da aka fi zaɓa don motocin fasinja. Amma menene wannan gajeriyar ma'anar kuma koyaushe zai nuna mafi kyawun mai ga motarmu?
Man yana da ayyuka masu mahimmanci da yawa - sanyi motsi sassa na injin, yana rage gogayya da tukin mota, hatimi sassa masu motsi har ma da tsaftace injin kuma yana hana lalata... Wannan shine dalilin da ya sa yana da mahimmanci a yi amfani da man da ya fi kare injin.
Gajarta hanyoyin, mafi mahimmancin man fetur
Dole ne aikin injin yana da alaƙa da aikin mai. Duk da haka, yana da daraja sanin cewa injin ya fi lalacewa ba lokacin da, alal misali, motar tana tuki da babban gudu a kan babbar hanya, amma lokacin farawa da kashewa... Don haka, gajerun tafiye-tafiye sune mafi wahala ga injin.
Yana iya zama abin mamaki, amma idan kuna tuƙin mota don ɗan gajeren nisa, kuna buƙatar mai mafi kyau fiye da idan kuna tuƙi na ɗaruruwan kilomita ba tsayawa. Mai kyau mai tsawaita rayuwar abubuwan injin guda ɗayakuma ba shakka - zai ba ka damar fara injin a cikin mafi munin yanayi (misali, a cikin sanyi mai tsanani).
Mafi zafi shine, ƙananan danko.
Babban siga na mai shine danko. Yayin da mai ya yi zafi, dankon sa yana raguwa. Yayin da injin ke sanyi, danko yana ƙaruwa.. A wasu kalmomi - a yanayin zafi mai zafi, man fetur ya zama bakin ciki, kuma lokacin da muka ƙara daɗaɗɗa tare da injin zafi, ƙananan rpm da ƙarancin man fetur, injin na iya rasa kariya na ɗan lokaci!
Koyaya, ana iya samun matsala kuma mai yayi yawa sosaikamar yadda zai iya kaiwa ga sassan injin guda ɗaya a hankali.
0W ya fi kyau don sanyi
Anan muna buƙatar magance ɓarna ta darajar danko. Siga tare da harafin W (mafi yawanci daga 0W zuwa 20W) yana nuna dankon hunturu. Karamin ma'aunin W, mafi girman juriyar sanyi..
0W mai zai jure mafi yawan sanyi - injin ya kamata a fara ko da a yanayin zafi ƙasa -40 digiri Celsius. 20W man yana yin mafi muni a ƙananan zafin jikiwanda zai iya hana injin farawa a -20 digiri.
Dumi man inji
Amma wannan ba duka ba, domin siga na biyu ma yana da mahimmanci. Lamba bayan harafin W ya nuna dankon mai lokacin da injin yayi dumi zuwa yanayin aiki na yau da kullun (kimanin 90-100 digiri Celsius).
Mafi shahararren danko shine 5W40.. Irin wannan man a cikin hunturu yana sa ya yiwu a fara injin a zazzabi na -35 digiri, kuma lokacin da ya dumi, yana samar da danko wanda ya fi dacewa ga yawancin raka'a. Ga mafi yawan - amma ba ga kowa ba!
Low danko mai
Ana kiran mai na maki 20 ko 30 makamashi ceton mai... Ƙarƙashin danko, ƙananan juriya na man fetur, wanda ke nufin ƙarancin asarar ƙarfin injin. Duk da haka, lokacin da zafi, suna samar da yawa fim ɗin kariya na bakin ciki.
Wannan ƙananan danko yana ba da damar mai don gudana cikin sauri tsakanin kayan injin, amma a yawancin wutar lantarki, wannan kariyar ba zai isa ba. A irin wannan hali injin na iya matsewa kawai.
Yawancin lokaci ana zuba mai irin wannan a cikin injuna na zamani - an ba da, ba shakka, cewa masana'anta sun ba da shawarar yin amfani da mai na wannan danko.
High danko mai
Mai na maki 50 da 60, akasin haka, suna da ɗanko mafi girma, don haka, a cikin magana ta alama, suna kama da "kauri". A sakamakon haka, sun samar da wani kauri Layer na man fetur da kuma sun fi kare motar daga kitse... Yin amfani da irin wannan man zai iya yin tasiri mara kyau a kan amfani da man fetur da kuzari.
An fi amfani da irin wannan nau'in mai. a cikin injuna mara kyau, Har ila yau, a cikin wadanda suka "dauki mai". Man mai sosai yana iya rage yawan amfani da mai har ma, saboda abubuwan rufewar su. rage motsin injin... Amma kuma ya faru da cewa high-danko mai ana ba da shawarar ga motocin wasannidon mafi kyawun kare ƙarfin ku don haka masu buƙatar tuki.
Shin zan canza danko?
Amsa tambayar take, Mai 5W40 (ko 0W40) alama mai kyau (misali. Castrol, Liqui Moly, Elf) zai zama mafi kyawun zaɓi a mafi yawan yanayi.
Sauyawa don man hunturu mai girma-danko a cikin yanayin yanayin mu babu wani uzuri - yana iya haifar da matsaloli tare da fara motar a cikin hunturu. Banda shi ne lokacin da muke buƙatar man fetur tare da babban danko na rani, kuma irin wannan man yana da danko, misali, 10W60.
layi canza mai zuwa mai tare da mafi girma ko ƙananan danko lokacin rani wani lokacin yana da ma'ana (alal misali, tare da injin motsa jiki, na zamani sosai ko, akasin haka, tsohon), amma yanke shawara ya fi dacewa bayan karanta littafin motar mota da tuntuɓar ƙwararren makaniki.
Hoto Castrol, avtotachki.com
