It is perfect for substantial power. Engine performance is optimized, as is its responsiveness. It has an effective cleaning action. It is compatible with catalysts. It is also suitable for injection diesel engines with turbo and intercooler without particulate filter.

This page contains references to products from one or more of our advertisers. We may receive compensation when you click on links to those products. However, the 10W is not as reliable as the 5W engine oil is as a start engine in winter and cold temperatures. This means that this type of oil is highly effective in situations where the surrounding temperatures are high.

Because of its adequate thickness, it will offer excellent lubrication even when the temperatures are extreme. Taking into account that the thicker the oil, the higher the viscosity; the 10W oil is, therefore, more vicious even when the temperature has risen to a certain value.

In summary, the 10W motor oil is more viscous; has a viscosity of 10 at low temperatures, and has a viscosity of 40 at high temperatures.

The 10W motor oil is preferred by motorists using higher mileage vehicles because the oil is thicker while the engine is hot. This type of oil is applicable in the starting of motor vehicles in winter or cold climates that ma experience temperatures o up to 10 degrees Celsius.

However, it is not as reliable as the 5W oil, as this supports lower winter colder temperatures. Because of the viscosity grade, the 5W serves as the best choice of motor oil for fuel economy. Most of these oils will offer percent fuel saving. The lower viscosity fuel offered by 5W motor oil makes it be fuel economy oil than most oils in the market. By using these lower viscosity oils in clean engine design, the economy of the fuel can be improved remarkably. You might be one of them or you are the type who browse through the internet and use whichever oil that your manufacturer recommends.

Although either scenario seems to be okay, it is important to know a little more about what you are feeding into your car and having information concerning the best oil for your car. If that is your question, then you are on the right path. It is necessary to compare the properties and specifications of engine oils so that you can know which oil to use in your car.

X and y stand for the viscosity of the oil while the W stands for winter. The Society of Automotive Engineers SAE established the numerical code system which they use to grade the motor oils in accordance with the characteristic of their viscosity. Due to the fact that the viscosity of oil changes with the change in temperature, several oil grades were established in order to provide protection for the engine of the vehicle across various temperatures.

The number before the W describes the viscosity of the oil when temperatures are at their lowest. If the number is lower, then it means the oil is thinner and thus, best for a cold start or cold temperatures performance. The number that appears after the W describes how thick the oil is when the engine is operating at normal temperatures.

Multigrade oils such as 10W40, 5W30, are normally used widely because of the fact that, under all but extremely cold or hot conditions, they are thin to allow them to flow at temperatures which are low and at the same time, thick enough to allow them to perform very well when the temperatures are high. This means that the choice of viscosity would be different depending on the temperatures of where you stay. The x and y according to SAE, can be represented by viscosity characteristics ranging from 0, 5, 10, 15, 20,25, 30, 40, 50 and Viscosity is the resistance of liquids to flow.

Those which are runny and very thin are normally given a viscosity that is lower while those which are consistent and very thick like honey, are given a high value of viscosity.

It is important to remember that, engine oils change their viscosity when put in different temperatures, depending on the weather outside. As concerning the kinematic viscosity, the numerics are normally assigned based on the ability of the oil to flow via an average orifice when the temperature is regular. If it takes the oils longer periods to pass through then it means that the SAE code assigned will be high because the viscosity is high meaning, 5w30 has a higher viscosity than 5w It separates oils into mono or single grade and multigrade.

For an oil to be termed as Multigrade, it has to fulfill two viscosity specifications and the viscosity grade will consist of two numbers such as 5w20 with 5 representing the low-temperature viscosity or winter, and 40 referring to the high-temperature viscosity or summer. Most of the engine oils that are available in the market are Multigrade.

Monograde oils are normally restricted for a specific usage like lawnmower oils. In comparison, Multigrade oils seem to be the preferred option for modern engines. They are able to keep the engine operating at an optimum viscosity range and at the same time, offer lubrication protection and consistent response. When it comes to single grade, they can be the best option in case the equipment in question is able to provide excellent constant control of temperature and oil cooling. As defined by the SAE J type of classification, the single grade oil only covers a single requirement and thus, cannot be used as polymeric viscosity index improver.

According to SAE J, there are 11 viscosity grades with 6 being considered as winter grades and thus given the W designation. The single winter grades, its dynamic viscosity are normally measured at various temperatures which are cold. The lower the temperature the oil can pass through, the lower the viscosity grade. For nonwinter single grades, its kinematic viscosity is normally measured at a degrees Celsius temperature.

Based on what viscosity range it falls in at that particular temperature, the oil will then be able to be graded as SAE 20, 30, 40, 50, or For SAE grade 20, 30 and 40, its minimum viscosity is measured at degrees Celsius. The higher the SAE grade is, the higher the viscosity of the oil. As such, the 5W40 ranks way above any motor oil with the number 30 in terms of performance.

Due to its superior performance, the 5W40 motor oil has many applications compared to other oil types. That explains why mechanics use it to support engines with higher mileage thanks to its unique properties.

This engine oil is usually thicker when subjected to heat compared to the average oil. On top of that, it lubricates moving parts of an engine better than the average motor oils. Judging from its characteristics, the 5W40 is ideal for high-mileage motorbikes in regions that experience extreme cold weather conditions of 5 degrees celsius.

This means that you can use it if you are staying in places that experience winter conditions. The 5W40 is certainly a reliable motorcycle oil that you can use to start-up the engine in freezing temperatures. Compared to 5W40, the 10W40 is thicker but a little bit thinner than average engine oils.

This type of oil is designed for lubricating older parts to make them perform optimally. More importantly, it is ideal for use in motorbikes in winter climates. Such regions are known to experience lower temperatures of about 10 degrees celsius.

Even though this engine oil is useful in areas that experience low temperatures, it is not as reliable as 5W40 when it comes to engine start-up. The main difference between the two oil types is that one is thinner than the other.