What are the numbers on oil mean

The numbers represent the viscosity of the oil and the W stands for WINTER. The long answer: In a 5W-30 for example, the number before the W describes the viscosity of the oil at low temperatures. The lower the number, the thinner the oil and the better the oil's cold temperature/ cold start performance.

7 Apr 2017 This is a fixed limit and all oils that end in 40 must achieve these limits. Once again the lower the number, the thinner the oil: a 30 oil is thinner  Definition of OIL in the Definitions.net dictionary. Meaning of OIL. What does OIL mean? Information and translations of OIL in the most comprehensive dictionary   The number to the left of the W refers to the oil viscosity when the temperatures are low. The number to the right of the W refers to the oil viscosity at hotter temperatures. If the first number is low, it means that you have thin oil. Whenever there are colder temperatures in your environment, it is better to have thin oil in your engine. The first number is the viscosity when the oil is cold. The number after the "W" is the viscosity after being warmed by the engine to operating temperature.

6.8.1 If a supply of base oil or additives utilized by a number of licensees is disrupted, licensees However, “ILSAC” and “Service Symbol” have no meaning for.

29 Jul 2016 Multigrade oils span a wide viscosity range and consist of two numbers on the label e.g. 10W-30. The 'W' stands for winter and the number in  What do the numbers and letters mean? The next topic The numbers represent the viscosity of the oil, which is essentially the thickness of a liquid. The higher  11 Dec 2017 The number before the W represents the oil viscosity at lower temperatures, while the second number (after the W) indicates the viscosity at  31 Jan 2013 The numbers you see on a motor oil bottle range from 0 to 60 and are Most motor oils on the market today are multi-viscosity oils, meaning  7 Apr 2017 This is a fixed limit and all oils that end in 40 must achieve these limits. Once again the lower the number, the thinner the oil: a 30 oil is thinner  Definition of OIL in the Definitions.net dictionary. Meaning of OIL. What does OIL mean? Information and translations of OIL in the most comprehensive dictionary   The number to the left of the W refers to the oil viscosity when the temperatures are low. The number to the right of the W refers to the oil viscosity at hotter temperatures. If the first number is low, it means that you have thin oil. Whenever there are colder temperatures in your environment, it is better to have thin oil in your engine.

What does a viscosity index number mean?

21 Feb 2019 what motor oil viscosity grades like 5W30, 15W40, 10W40 mean, this Multigrade lubricant containers feature a number on either side of the 

The lower the “W” number, the better the oil will perform at a cold temperature. The number to the right of the dash is the viscosity rating at engine operating 

15 Jun 2019 A lot of car owners knows what specific oil. SAE Motor Oil Meaning The number mentioned before W indicates the oil flow at 0 degrees  The base number (BN) is a property that is more associated with engine oils rather than industrial oils. It can be defined as the oil's ability to neutralize acids that  7 Jan 2019 The main difference between 10w30 and 5w30 engine oil is their viscosity grades. Check out other differences and when you should be using  20 Jul 2012 Motor oil lubricates engine components and cuts down on friction. Friction causes These oils have two numbers in its viscosity grade. You are 

The lower the “W” number, the better the oil will perform at a cold temperature. The number to the right of the dash is the viscosity rating at engine operating 

The first number is the viscosity when the oil is cold. The number after the "W" is the viscosity after being warmed by the engine to operating temperature. The numbers you see on your motor oil can range from 0 to 60 and are determined in laboratory tests by the Society of Automotive Engineers (SAE). These numbers refer to viscosity, or thickness, with the lowest numbers representing the thinnest, and therefore the most viscous oil.

The numbers of a typical multi-weight oil have specific meanings. As stated above, viscosity numbers are taken for oil when cold and hot. This is what the numbers mean. The first number is the viscosity of the oil, how it will flow, when cold. The second number is the viscosity, how it will flow, when hot.