What does the numbers mean on motor oil

To be blunt about the subject, if a bottle of oil does not contain the following basic information then DO NOT buy it! Look for something that does! 1) The purpose for which it is intended (i.e. Motor oil, Gear oil etc) 2) The viscosity (i.e. 10w40, 5w30 etc for Motor oils and 80w90, 75w90, etc for Gear oils)

Jul 31, 2017 What do these numbers mean? What does SAE 5W-30 mean? The short answer: The numbers represent the viscosity of the oil and the W stands for system for grading motor oils according to their viscosity characteristics. Have you ever stared blankly at a wall of motor oil in the store, wondering what all those numbers and letters mean? SAE 5W-30, 15W-40, 10W – what does it all   Jan 16, 2019 In a nutshell, the numbers before and after the W represent viscosity. The letter “ W” itself stands for Winter. As you may know, viscosity means the  Nov 2, 2017 Choosing the right engine oil weight doesn't have to be complicated. Here's a look at what the numbers on the bottle actually mean.

How is viscosity rated on engine oils? What is the importance of viscosity in my engine?

Nov 2, 2017 Choosing the right engine oil weight doesn't have to be complicated. Here's a look at what the numbers on the bottle actually mean. May 23, 2018 Starting very generally, the number designation on motor oil describes the oil's viscosity, or how well it flows. For a better example, stuff like  Jul 29, 2019 Have you ever wondered what the numbers printed on motor oil bottles mean? We explain the origins and meaning behind motor oil viscosity  Jan 18, 2017 Motor oil thins as it heats and thickens as it cools. So, with the right additives to help it resist thinning too much, an oil can be rated for one viscosity when cold,  Apr 18, 2015 As far as the numbers, use what your vehicle manufacturer recommends. There is a reason your manufacturer recommends a viscosity, the  The higher numbers of a gear oil (e.g., 75W-140) do not mean that it has higher viscosity than an engine oil. In anticipation of new lower engine oil viscosity  Sep 11, 2019 Generally the numbers on the engine oil represent its thickness or thinness. There are various alphabets on the panel also. These alphabets 

Two of the most common oils you'll encounter are 5w30 and 10w30. In this article we break In this article we break down the difference between the two and help you decide which one is right for your engine. What Do the Numbers Mean?

confused with engine oil viscosity. The higher numbers of a gear oil (e.g., 75W- 140) do not mean that it has higher viscosity than their viscosity characteristics. May 9, 2017 The numbers are decided in SAE J300 testing which measures how long the oil takes to flow through a standard orifice at the test temperatures, 

Feb 21, 2019 5W30, 15W40, 10W40 – we've all encountered designations like these when choosing engine lubricants, but what do they mean and why do 

Sep 11, 2019 Generally the numbers on the engine oil represent its thickness or thinness. There are various alphabets on the panel also. These alphabets  Aug 2, 2019 No one really thinks about the different levels of oil thickness or how much of an influence hot and cold temperatures have on the oil. If you 

Sep 11, 2019 Generally the numbers on the engine oil represent its thickness or thinness. There are various alphabets on the panel also. These alphabets 

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. So that means a 5w-20 motor oil will have the viscosity characteristics of a 5 weight motor oil when cold. Let’s take a closer look at how oil is classified, and how to better understand what the numbers on the bottle actually mean. Going With the Flow. Oil weight is a term used to describe the viscosity of an oil, which means how well it flows at a specific temperature. To be blunt about the subject, if a bottle of oil does not contain the following basic information then DO NOT buy it! Look for something that does! 1) The purpose for which it is intended (i.e. Motor oil, Gear oil etc) 2) The viscosity (i.e. 10w40, 5w30 etc for Motor oils and 80w90, 75w90, etc for Gear oils) What does 5W-30 actually mean Not all of us get to service our own cars. In fact, most of us don’t even know what is under the hood of our car, let alone the type of oil that is in our engine. Motor oil 10W-30. What does the numbers mean? I have a car 1.8 litres, 4 cylinders, 60000 miles. Before that I used 5W-30, but now found a box of 10W-30 in my garage from another car. Is it ok if I use it for my car. I don't have a manual for the car, and I don't know what the numbers mean. This leaves them still wondering what the viscosity numbers really mean on a bottle of motor oil. Simply put, viscosity is the oil's resistance to flow or, for the layman, an oil's speed of flow as measured through a device known as a viscometer. The thicker (higher viscosity) of an oil, the slower it will flow.

Oct 1, 2019 What do these numbers mean and why do they matter? These oil “weights” are not weights at all, but a measure of the motor oil viscosity. What do the SAE numbers on a container of motor oil mean? To properly answer that question a bit of history is required. Motor oil is like every other fluid in that  ABOUT OILS. Modern engine lubricants often do not suit older vehicles since they are designed for fuel efficiency, emissions control and extended change  Jan 13, 2020 Good oil helps reduce fuel consumption, CO2 emissions and polluting gases and , of course, reduce engine wear. If it is in poor condition and  Aug 4, 2019 SAE 5W-20 Motor Oil, This article helps you to understand if you Numbers following the "SAE" on Motor Oil Label actually mean! The "SAE" then on the caps of glass oil bottles and later on the tops of paper oil cans, does  Jan 31, 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 they are This generally means they're less unstable and they evaporate far less,  Motor Oil Viscosity Grades - What do the numbers on motor oil bottles mean? Motor Oil Service Ratings - Good information on motor oil service ratings.