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What does 5w 40 oil mean?
Jan 09, 2018

What does 5w 40 oil mean?

In a 5w-40 for example the 5w bit (W = winter, not weight or watt or anything else for that matter) simply means that the oil must have a certain maximum viscosity/flow at low temperature. The lower the "W" number the better the oil's cold temperature/cold start performance

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    Jiangsu Lopal Tech Co.,Ltd
    Add:NO.6 Hengtong Avenue, Economic and Technological Development Zone, Qixia District, Nanjing City, Jiangsu Province
    Tel:+86-025-85802178
    Fax:+86-025-85804898
    Mobile:+86-13677379280
    E-mail:caoyuepeng@lopal.cn
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