Explain the Different Weights of Motor Oil

Check your owners manual. The older 80s and 90s BMWs display different oil viscosities for different climates per the owners manual.

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I dont have to tell you why that is bad.

. The second number the number after the W represents oils viscosity at 212 degrees F. Lower viscosity motor oils also result in better fuel economy. Your 10W-30 motor oil can easily become a 10W-20 or even a SAE 10 10W-10 motor oil.

However the W in the name never stood for weight. The polymers allow the oil to have different weights at different temperatures. There are four major categories of motor oilconventional full synthetic synthetic blend and high mileage.

However if you can avoid it you should not do so. Manufacturers recommend the. For example a 5w30 oil weight rating means that on cold start-up even at.

Order today with free shipping. Car Engine Oils At A Glimpse. This stands for winter and is part of the 5 rating.

The first number in the oil weight represents the oils viscosity at 0 degrees F. The lower the number the lighter the weight and therefore the thinner the oil. This question is very common because there are situations when you have no choice and that you have to mix two motor oils with different viscosity.

The first number indicates the viscosity of the oil at a cold temperature while the second number indicates the viscosity at operating temperature. One weight will be a winter weight and the other will be the hot weight. As a result the 10w30 is more viscous than the 5w30.

Motor oil helps lubricate an engine to reduce friction and maintain smooth movement of working parts thereby increasing performance. What this means is that the oil industry scientists in their labs have created lubricants that flow better at low temperatures than. Get the Deals now.

The two temperatures viscosity is measured with motor oil is 0 deg F and 212 deg F. There are three main types of motor oil. The w stands for winter and indicates that the lubricant in question has a different viscosity or different flow characteristics based on temperature.

However several viscosity grades are compatible and possible to mix provided that they are under one motor oil brand. So you may see gear oil listed as 75W-90 which gives you both the winter and hot weights of the oil. Ad Buy synthetic oils for cars diesels bikes sleds boats and more.

Your engine may seem to work just fine. The more VI additives the worse the problem which is why auto manufacturers decided to steer car owners away from motor oils loaded with VI additives like the 10W-40 and 20W-50 viscosities. The behavior of the oil was graded and named based on its weight at cold or Winter temperatures.

Conventional synthetic and synthetic blend the last of which combines some of the properties of the first two. There is no guarantee that combining two different viscosities of motor oil would not harm your engine. These lower viscosity motor oils are needed to move through the thin engine pathways to protect and clean metal surfaces.

When these two oils are mixed the resulting blend will simply have viscosity characteristics thicker than 5W30 but thinner than 10W40 and this poses no harm to your engine. The lower the number preceding the W the lower the. Oil weight refers to how thickthin the oil is which is the same as viscosity.

The lower the first. The first number in the oil weight represents the oils viscosity at 0 degrees F. Which weight oil should you use.

The number following the W indicates the weight of the oil when hot. MOTOR OIL WEIGHT. As a result it is possible to combine the two.

Brand new engine oils including the 0W-30 5W-30 and 10W-30 perform as single weight grade oil at fully warmed-up and operating temperature of your car. SAEs J300 standard first published in 1911 and revised numerous times since classifies oil into 11 viscosity grades0W 5W 10W 15W 20W 25W 20 30 40 50 and 60. To account for changing temperatures oil is manufactured through the use of additives so that it can have multiple grades of viscosity or multiple weights.

The majority of engines designed before Ford had 5W-20 oil. Lower viscosity oils pour with ease at a given temperature while higher viscosity oils are more. Multi-weight oils such as 10W-30 are a new invention made possible by adding polymers to oil.

This is the oils viscosity rating at high temperatures. Colder climates will require thinner oil and hotter climates will require thicker oil. What is interesting is that there is a move towards thinner oil being used in the engines that manufacturers are recommending an SAE 5W-20 be used when in the past the type of oil recommended was SAE 5W-30.

If we will talk about oil weights it means the viscosity of the motor oil. The lower the number before the W the less viscous thinner or runnier the oil at that temperature. Ad Enjoy Discounts Hottest Sales On 20 Weight Motor Oil.

In the beginning motor oils came in single weight options or mono-grades like 0W 5W 10W etc. The other number refers to the oils resistance towards thinning at high-temperature conditions. Oils first received this W designation from SAE in the 1950s.

Many people assume the motor oil grade is the same as the oil weight. Explain Motor Oil Weights First Number. For example 5W30 has low viscosity and 10W40 has higher viscosity.

All vary in the chemical components and viscosity. The W signifies winter not weight. The lower the first number in an oils weight the thinner it is at low temperatures.

Within these types there are different grades or weights. As compared to the 10w30 the 5w30 is both thinner and lighter. When we say viscosity it means the flow of the oil at a specific temperature that it is in.

This is the oils viscosity rating at low or winter temperatures. This means that if the owners manual calls for a 30 weight using a 40 weight is not going to create an advantage. But still doing so will produce a new viscosity that is not the same as the original oil in the engine or the original oil to be added.

This has led over time to motor oil viscosity decreasing currently 5W-30 and 5W-20 are the most popular grade and 0W-20 is the fastest growing grade. Various car engine oil manufacturers have assured their customers that it is definitely safe to mix different weights of oil. Viscosity is a measure of how easily oil pours at room temperature.

In general mixing oil weights is not recommended. Oil that is thinner at cold temperatures is typically better suited for winter driving.

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