Let’s talk about engine oil, sometimes referred to as lubricants. Engine oil performs different functions, primarily providing lubrication and cooling. The benefits of proper engine oil are less wear on engine parts and optimal engine performance. But what do the numbers like 15W-40 mean, and how do you know it’s the right oil for your engine? Let’s explore an example: Shell Rimula 15W-40.
Understanding Oil Viscosity Grades
What Do the Numbers Mean?
The grade of 15W-40 consists of two numbers. The “15W” refers to the oil’s viscosity in winter, while “40” refers to its viscosity at 100°C. Viscosity measures the oil’s thickness and its ability to flow. Higher viscosity means better lubrication and cooling, but too high viscosity can make the engine harder to start.
Importance of Viscosity
An engine oil’s ability to lubricate and cool your engine depends on its viscosity. The more viscous an oil is, the better it lubricates and cools. Conversely, less viscous oil provides poorer lubrication and cooling. Since viscosity degrades with heat, oils with higher second numbers (like 40) maintain their viscosity better at higher temperatures.
Balancing Viscosity for Optimal Performance
Cold Starts
Choosing an oil solely based on high viscosity at 100°C has downsides. Highly viscous oil can make it difficult to start the engine, especially in cold conditions, potentially overworking the electrical system that fires up the engine.
Additives and Modern Solutions
Today, lubricant manufacturers use additives to balance viscosity levels, protecting your engine while ensuring quick and easy start-ups. This innovation provides the right balance, allowing the oil to perform well across a range of temperatures.
Consulting Manufacturer Guidelines
OEM Recommendations
Original Equipment Manufacturers (OEMs) typically publish recommended engine oil grades for different ambient temperatures. Always consult your operator’s manual to select the best oil for your equipment.
Importance of Following Guidelines
Following OEM guidelines ensures that your equipment operates efficiently and lasts longer. Using the right oil minimizes wear and tear, reduces maintenance costs, and improves overall performance.
Benefits of Choosing the Right Engine Oil
Enhanced Engine Performance
Using the correct engine oil enhances performance by reducing friction and heat buildup. This leads to smoother engine operation and better fuel efficiency.
Prolonged Engine Life
Proper lubrication prevents excessive wear on engine components, extending the life of your machinery. Regularly using the recommended oil can prevent costly repairs and replacements.
Cost Savings
While premium oils may cost more upfront, they save money in the long run by reducing maintenance needs and improving fuel efficiency. This results in lower operational costs over time.
Selecting the right engine oil for your machine is crucial for maintaining optimal performance and longevity. By understanding oil viscosity grades and following OEM recommendations, you can ensure your equipment runs smoothly and efficiently.
