Understanding oil weights

The following is a breakdown of motor oil basics. VISCOSITY AND OIL WEIGHTS Viscosity is a fluid's resistance to flow. A higher viscosity fluid like honey takes 

In a 10w-40 for example the 10w bit (W = winter, not weight or watt or anything else for that matter) simply means that the oil must have a certain maximum viscosity  Engine oil viscosity refers to how easily oil pours at a specified temperature. Thin oils have lower viscosity and pour more easily at low temperatures than thicker  It stands for “Winter” and that is the key to understanding viscosity grades. A 10W- 30 is a multi-grade (two viscosities) motor oil, and as the name implies, it meets  What Motor Grade Oil should I use? What is Viscosity? Viscosity is a measure of the resistance to flow of liquids. We all know that water 

Viscosity is notated with the common "XW-XX." The number preceding the "W" rates the oil's flow at 0 degrees Fahrenheit (-17.8 degrees Celsius). The "W" stands for winter, not weight as many people think. The lower the number here, the less it thickens in the cold.

The manual also specifies a viscosity grade in the form of a number preceded by the initials “SAE.” This grade refers to the “weight” of the oil and the temperature  12 Jun 2019 A barrel is a unit of volume or weight that is different depending on who The Btu content of each fuel provided below (except for crude oil) is  Oil weight is a term used to describe the viscosity of an oil, which means how well it flows at a specific temperature. The Society of Automotive Engineers (SAE) assigns a viscosity number, or weight, to oil based on its flow at 210 degrees F, which is roughly the standard operating temperature for most motors. Straight weight oil is never recommended for use in a system that requires a multi-viscosity oil. Straight weight oils are generally recommended for smaller engines or older vehicles that were made before multi-viscosity oils were produced. Is switching types of motor oil (conventional, synthetic, When you see a W on a viscosity rating it means that this oil viscosity has been tested at a Colder temperature. The numbers without the W are all tested at 210° F or 100° C which is considered an approximation of engine operating temperature. In other words, a SAE 30 motor oil is the same viscosity as a 10w-30 or 5W-30 at 210° (100° C). The difference is when the viscosity is tested at a much colder temperature. For example, a 5W-30 motor oil performs like a SAE 5 motor oil would Once again the lower the number, the thinner the oil: a 30 oil is thinner than a 40 oil at 100°C etc. Your handbook will specify whether a 30, 40 or 50 etc is required. Your handbook will specify whether a 30, 40 or 50 etc is required. Understanding viscosity promotes the ability to reduce wear, improve fuel economy, and make more horsepower. For starters, in oil nomenclature, “W” does not stand for “Weight”. It stands for “Winter” and that is the key to understanding viscosity grades.

Motor oil, engine oil, or engine lubricant is any of various substances comprising base oils In anticipation of new lower engine oil viscosity grades, to avoid confusion "Understanding JASO MA and MB: Specific Performance for the Right 

But its' my understanding from what I have read that oil has gotten a LOT The 5w30 has more viscosity index improvers vs the 10w30 so 

It stands for “Winter” and that is the key to understanding viscosity grades. A 10W- 30 is a multi-grade (two viscosities) motor oil, and as the name implies, it meets 

The first number, the 5W of the 5W-30 viscosity, for example, indicates the viscosity of the oil at a cold temperature; the second number indicates the viscosity at  5 Feb 2019 There are different brands, different quantities, different weights, and even different types of oil. How in the world could you possibly know which  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  16 Jan 2019 Most people have either changed the oil of their car themselves or The number to the left of the W refers to the oil viscosity when the I now have an understanding of what is going on in my engine through the season. So, let's start at the lightest weight and work our way up. Tare Mass or Weight. This is the weight of an empty standard vehicle with all of its fluids (oils, coolants) but 

21 Jun 2019 Viscosity is a rating system for oil that rates the oil's thickness at a given temperature. Production engines are increasingly moving to thinner, less 

13 Mar 2017 Empty Weight Empty weight is defined as the total weight of an aircraft including all fixed ballast, unusable fuel, undrainable oil, total quantity of 

The higher the number, the thicker the oil and vice versa. Thicker oils have more resistance to shearing and losing film strength at higher temperatures. Oil viscosity differs from one lubricant to another with respect to temperature. One of the factors that affect viscosity is the operating surface. Oil weight, or viscosity, refers to how thick or thin the oil is. The temperature requirements set for oil by the Society of Automotive Engineers (SAE) is 0 degrees F (low) and 210 degrees F (high). Oils meeting the SAE's low temperature requirements have a "W" after the viscosity rating (example: 10W), The viscosity grade (for example, 5W-30) tells you the oil's thickness, or viscosity. A thin oil has a lower number and flows more easily, while thick oils have a higher number and are more resistant to flow. Water has a very low viscosity -- it is thin and flows easily. Honey has a very high viscosity -- it is thick and gooey. Oil weight is a term used to describe the viscosity of an oil, which means how well it flows at a specific temperature. The Society of Automotive Engineers (SAE) assigns a viscosity number, or weight, to oil based on its flow at 210 degrees F, which is roughly the standard operating temperature for most motors.