Yuav ua li cas txheeb xyuas qhov zoo ntawm ci -4 15 w / 40 diesel cav roj

Qhov zoo ntawm ci -4 15 w / 40 diesel cav roj tuaj yeem txawv ntawm cov hauv qab no:
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Xim thiab pob tshab: roj zoo dua muaj cov xim av, nws yuav tsis muaj xim rau cov roj av, nws yuav muaj cov roj av zoo heev Zoo .
Flowerability: ntawm cov roj haum haum, lub cav roj yuav tsum muaj cov roj uas muaj kuab, xws li cov roj av huv si, thiab muaj peev xwm ua kom pom cov roj hauv lub cav ntoo
2. hom thiab ntawv pov thawj
Hom Khoom Siv Hluav Taws Xob: Xaiv Hom Tsim Kho Cav Yog ib qho tseem ceeb ntawm cov khoom siv thiab cov khoom lag luam loj heev rau hauv cov roj cav roj rau ntau xyoo, thiab lawv cov khoom zoo yog qhov ntxiv tau lees paub ntxiv .
Cov ntawv pov thawj API: Tshawb xyuas seb puas muaj cov ntawv pov thawj API ntawm lub hnab ntim tau los yog tsis muaj peev xwm ua tau los ntawm cov qauv ntawv pov thawj lossis muaj teeb meem rau cov roj txheem zoo {}}
{{03. muaj pes tsawg leeg ntxiv thiab ua haujlwm ntsuas
Cov ntaub ntawv ntxiv: cov roj muaj txiaj ntsig zoo ntxiv yuav ntxiv ntau yam kev ua haujlwm ntawm cov chaw tsim tshuaj paus thiab cov khoom siv tshuaj tua kab mob kom nkag siab txog hom thiab cov ntsiab lus ntawm cov quav ntxiv.
Performance test report: Some professional engine oil manufacturers will provide performance test reports, including anti-wear performance test, antioxidant performance test and other data. Through these reports, you can intuitively understand the quality level of the engine oil. If conditions permit, you can also send the engine oil sample to a professional testing agency for testing.
Yog tias koj xav kawm paub ntxiv txog yuav ua li cas txheeb xyuas qhov zoo ntawm cov roj {}}}}}} {}