IT'S MORE THAN JUST OIL. It can be seen that as the percentage weight of additive increases the damping coefficient of respective engine oil also increases. Interactive Conversion Programs and Calculators. If you do not agree or if you would like more information, you can manage your cookie preferences opposite. The first number ends with the letter 'W', which stands for Winter. The main requirements for an engine oil are defined temperature-viscosity properties, protection against wear and corrosion, keeping the engine clean, holding particles like soot or abrasives in suspension, yield strength under compression and many more. Note the viscosities of the two oils and your desired viscosity. There are scientific ways to measure viscosity with a viscometer; but, a do-it-yourselfer's kitchen has most of the tools necessary to obtain a simple measurement of a motor oil's viscosity. There are two numbers that define the viscosity of an oil. IT'S LIQUID ENGINEERING. The viscosity of an oil is measured by its resistance to flow. 504 0 obj <> endobj The second number  is defined by how an oil flows when at higher temperatures normal engine operating temperatures. endstream endobj 505 0 obj <. The word viscosity describes how easily an engine oil flows. Google use cookies for serving our ads and handling visitor statistics. The second number is defined by how an oil flows when at higher temperatures normal engine operating temperatures. AddThis use cookies for handling links to social media. Thick, high viscosity oils are typically better at maintaining film strength to protect engines at high temperatures. Lube oils can be multigrade or monograde where multigrade oils fulfills two viscosity specifications. Engine Oil Analysis; Used Oil Analysis; Used Oil Analysis: How to decide what is normal; What is Oil Analysis? Graph the basic viscosity curves of any 4 oils from their data sheets or their data sheets and the calculators … But the engine and gear oil viscosity overlap. 1. Calculate the CFM needs of your engine Convert between English and Metric measuring systems, as well as fuel consumption and conversion of viscosity systems between cSt, SUS, Redwood y Engler. measuring systems, as well as fuel consumption and conversion of viscosity systems between cSt, SUS, Redwood y Engler. 520 0 obj <>/Filter/FlateDecode/ID[<1EF479140142AE47B154210A74A656CA>]/Index[504 53]/Info 503 0 R/Length 84/Prev 197007/Root 505 0 R/Size 557/Type/XRef/W[1 2 1]>>stream These applications will - due to browser restrictions - send data between your browser and our server. Only emails and answers are saved in our archive. The “W” in the gear oil viscosity grade is for winter grade, like in engine oil viscosity. There are two numbers that define the viscosity of an oil. We don't save this data. Engine oil: Oil viscosity index December 11, 2017 8:00 am. Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! For instance, an SAE 90 gear lube is comparable in viscosity to an SAE 50 or SAE 40 engine oil. If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. h�b```f``����� 8�A��2,@ȱ9A�U�̢(�;����型`t���A��;�J�@���/��b~� �2�1���N"즟W:��d�3O`�� � ��t�����(��H�20H������z�2Fy� �"b of an oil when you know the viscosities at 40, when you only know the ISO viscosity (viscosity at 40, in your equipment at operating temperature, of a mixture of two oils (note: you should only mix oils of the same brand and type), each of two oils needed to mix and obtain a given end viscosity, , specific gravity, kilos per liter or pounds per gallon. Here are a few practical calculators and converters where you can use real numbers to get the values needed. This measurement is related to how an oil flows when it is cold, such as at engine start-up. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected. The first number ends with the letter 'W', which stands for Winter. The smaller the number, the better it will flow. So a 5W-30 will flow easier than a 10W-30 at start-up temperatures and a 10W-30 will flow easier than a 10W-40 at normal engine operating temperatures. The first number ends with the letter 'W', which stands for Winter. Thin, low viscosity oils flow easier to protect engine parts at cold temperature. The second number is defined by how an oil flows at normal engine operating temperatures.

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