Kodi pali kusiyana kotani pakati pa 5W30 ndi 5W40 mafuta?

Zamkatimu

Pakali pano, paki yamagalimoto a Chitaganya cha Russia makamaka amapangidwa ndi magalimoto amene injini ndi zinthu ntchito amafuna mafuta a gulu 5W30 kapena 5W40. Pansipa tiwona mwachidule mafuta a 5W30 ndi 5W40, pali kusiyana kotani pakati pawo, kaya akhoza kusakanikirana, ndi mafuta ati a SAE omwe ndi abwino kwambiri m'nyengo yozizira.

Decoding mafuta 5W30 ndi 5W40

Momwemonso, manambala awiri olekanitsidwa ndi chilembo chachilatini "W" amatanthauza mafuta ochulukirapo malinga ndi gulu la SAE J300. Ndipotu, kusiyana pakati pa mafuta omwe akufunsidwa ndi ochepa.

Kwa mafuta 5W30 ndi 5W40, index ya kukhuthala kwa dzinja ndi yofanana: 5W. Izi zikutanthauza kuti mafuta ali ndi makhalidwe awa m'nyengo yozizira:

  • mamasukidwe akayendedwe pamene ikukoka lubricant kudzera dongosolo kungakupatseni pa yozungulira kutentha mpaka -35 ° C;
  • mamasukidwe akayendedwe pamene crankshaft akutsimikizira chiyambi cha injini ndi sitata ndipo nthawi yomweyo kuteteza liners ndi crankshaft magazini, komanso zovundikira ndi mabedi a camshaft scuffing pa kutentha yozungulira mpaka -30 ° C.

Kodi pali kusiyana kotani pakati pa 5W30 ndi 5W40 mafuta?

Ndipo kwa mafuta awiri omwe amaganiziridwa, chizindikiro ichi ndi chofanana. Ndiko kuti, ponena za ntchito yozizira, palibe kusiyana.

Gawo lotchedwa chilimwe la index ya SAE limatanthawuza ma kinematic ndi viscosity yamphamvu pa kutentha kwa mafuta. Pali kale kusiyana kwakukulu pano. Mafuta a 5W30 ali ndi viscosity ya kinematic pa 100 ° C kuyambira 9,3 mpaka 12,5 cSt, yamphamvu pa 150 ° C ndi 2,9 cSt. Kwa 5W40 mafuta, motero, kuchokera 12,5 mpaka 16,3 cSt ndi 3,5 cSp.

Kodi pali kusiyana kotani pakati pa 5W30 ndi 5W40 mafuta?

Kodi 5w30 ndi 5w40 angasakanizidwe?

Funsoli siliri lolondola kwenikweni, chifukwa zinthu zina zimakhudza kusokonezeka kwamafuta. Koma funso limeneli nthawi zambiri amafunsidwa ndi oyendetsa galimoto. Ndiye tiyeni tifotokoze.

N'zotheka kusakaniza mafuta omwe ali ndi maziko omwewo ndi phukusi lowonjezera lofanana popanda zoletsa. Mwachitsanzo, ngati mudzaza ma hydrocracked synthetics (kapena theka-synthetics, ngati tiganizira za Western classification) ndi phukusi la zowonjezera kuchokera ku Lubrizol, mukhoza kuwonjezera mafuta ndi maziko omwewo ndi zowonjezera kuchokera ku Lubrizol. Kusiyana kudzakhala kokha mu ndende ya thickening zigawo zikuluzikulu ndi kakang'ono kusiyana mu zinthu zina yogwira. Mafuta sadzatsutsana wina ndi mzake. Komanso, mawu awa ndi oona mosasamala kanthu za wopanga mafuta.

Osasakaniza mafuta a 5W30 ndi 5W40, omwe ali ndi chiyambi chosiyana. Mwachitsanzo, kutsanulira 5W30 mchere madzi mu apamwamba PAO-synthetics 5W40 ndi osafunika. Kusiyanitsa pakati pa mafuta odzolawa pamlingo wa mamolekyu ndiwofunika kwambiri. Kusakaniza kotereku kungayambitse kutulutsa thovu, kuwonongeka kwa zinthu zina zowonjezera, kupanga mankhwala a ballast ndi mpweya wawo, komanso zotsatira zina zosasangalatsa.

Kodi pali kusiyana kotani pakati pa 5W30 ndi 5W40 mafuta?

Ndi chiani chokhuthala: 5w30 kapena 5w40?

Kutengera mfundo yoyamba, yankho la funso ili: mafuta wandiweyani ndi mamasukidwe akayendedwe 5W40. Onse ponena za kukhuthala kwamphamvu (pakumeta ubweya wambiri), komanso pankhani ya kinematic. Komabe, sizingatheke kunena mosapita m'mbali kuti mafuta amodzi ndi abwino kapena oyipa chifukwa ndi okhuthala.

The mamasukidwe akayendedwe parameter si amawunikidwa mu ndege bwino/zoipa. Kuwonjezera mamasukidwe akayendedwe lokha, amene ndithudi apamwamba kwa 5W40 mafuta, chizindikiro monga kukhuthala kukhuthala coefficient n'kofunika. Chizindikiro ichi chimadziwika ndi mphamvu ya mafuta kuti ikhalebe ndi kukhuthala kwake pa kutentha kwakukulu. Ndipo chizindikiro ichi chokwera kwambiri, makhalidwe a mafuta amadalira kutentha.

Kodi pali kusiyana kotani pakati pa 5W30 ndi 5W40 mafuta?

Mwachitsanzo, ndi index mamasukidwe akayendedwe mayunitsi 140, mafuta kwambiri kusintha fluidity ndi kutentha. Pakutentha koyipa, imakhuthala bwino, ndipo pakatentha bwino imakhala yamadzimadzi. Pa nthawi yomweyo, mamasukidwe akayendedwe coefficient 180 mayunitsi limasonyeza kudalira otsika mamasukidwe akayendedwe kusintha kutentha. Ndiko kuti, mafutawo amakhala okhazikika potengera kukhuthala kwa kutentha kwakukulu.

Mafuta m'nyengo yozizira: 5W30 kapena 5W40?

Pankhani ya chitetezo choyambira kuzizira, mafuta onse omwe akuganiziridwa adzagwira ntchito mofanana mu injini m'nyengo yozizira. Chitetezo cha injini chotsimikizika chimaperekedwa pa kutentha mpaka -30 ° C. Palibe kusiyana kwa ntchito yachisanu, kapena ndizochepa.

Kodi pali kusiyana kotani pakati pa gawo la "chilimwe" la viscosity index - tasanthula pamwambapa. Ndipo momwe zidzakhudzire ntchito yozizira zimatengera injini yokhayokha. Ngati apangidwa kuti azigwira ntchito ndi mafuta, omwe ayenera kukhala ndi kutentha kwakukulu kwa mayunitsi 30 SAE - 5W30 mafuta adzakhala bwino m'nyengo yozizira. Ngati injini amafuna 5W40 kondomu, ndi bwino kuyesera ndi kutsanulira.

Ndi mafuta ati omwe ali bwino: 5W30 kapena 5W40?

Poyamba, automaker amayala magawo ena mu kapangidwe ka galimoto: mipata pakati pa kukhudzana mbali, pazipita katundu mu mikangano awiriawiri, roughness wa malo mating, etc. Ndipo mafuta amasankhidwa m'njira kuti mosavuta. mu kukhudzana mawanga, kupanga odalirika zoteteza filimu ndi kuchepetsa kukhudzana zitsulo zitsulo.

Choncho, mapeto apa ndi ophweka: mafuta abwino kwambiri ndi omwe poyamba ali apamwamba kwambiri komanso apamwamba kwambiri ndipo amalimbikitsidwa ndi automaker. Pali chenjezo laling'ono pano lomwe si onse oyendetsa galimoto akudziwa. Wopanga makina amagalimoto ena amatha kupangira mafuta osiyanasiyana pamayendedwe osiyanasiyana kapena ma mileage. Chifukwa chake, sikungakhale kofunikira kubwerezanso bukhu la malangizo ndikuyang'ana gawo lomwe lili ndi mafuta ovomerezeka.

Kusintha mafuta | 5W30 vs 5W40 | Kodi n'zotheka kusintha 5W30 ndi 5W40 ndi mosemphanitsa?
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