Oil viscosity refers to how thick or thin the oil is and how well it flows at different temperatures. This is represented by the numbers you see on oil bottles, such as 5W30 or 10W30, and it’s measured by the Society of Automotive Engineers (SAE).

2018年10月20日 · Here’s everything you need to know to understand exactly what those numbers on oil mean so you’re not having to re-do that oil change. Related: Symptoms of Using the Wrong Engine Oil Table of Contents

2025年1月3日 · The short answer: The numbers represent the viscosity of the oil and the W stands for WINTER. The long answer : The Society of Automotive Engineers (SAE) has established a numerical code system for grading motor …

When you look at a bottle of oil, you might notice a number stamped on the label. This number tells you the grade of the oil, which is determined by how the oil performs in certain tests. The numbers also give you an indication of the oil’s viscosity, or how thick it is.

2024年3月31日 · Understanding motor oil grades and classifications is crucial for ensuring your vehicle’s engine runs smoothly and efficiently. Motor oil, often described as the lifeblood of an engine, requires precise selection to match the manufacturer’s specifications and ambient temperature conditions.

2018年7月9日 · Learn about motor oil weights like 5W-20 and 10W-30. Understand viscosity ratings, cold weather performance, and how to choose the right oil for your vehicle.

2020年8月22日 · Different cars require different kinds of motor oil, which is why those numbers on the bottle are so important. Jason Fenske at Engineering Explained has a quick video explanation of what those...

2025年1月14日 · Understanding the numbers and approvals on that bottle can be the difference between a healthy engine and a costly repair bill. Let’s break it down. Those numbers on the bottle? They tell you how the oil performs at different temperatures.

2022年10月26日 · When you find the oil your engine needs, you might be wondering what the numbers mean that are printed on the container. Typically, there will be two numbers on each quart of oil. In some cases, there will be only one. For example, you might see a quart that says SAE-30, which is a single-grade oil.

2017年1月6日 · Society of Automotive Engineers (SAE) has developed numerical coding system to grade the engine oils according to their viscosity. SAE viscosity index includes the following numbers: 0, 5, 10, 15, 20, 25, 30, 40, 50 and 60. As a thumb rule, lower the number means lower viscosity and vis-a-vis. What is 10W-40 or Multi-grade engine oil?