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Motor oil grades indicate the oil’s viscosity. Classifications include single-grade oils and multi-grade oils, such as 10W-40. Understanding motor oil grades and classifications is crucial for ensuring your vehicle’s engine runs smoothly and efficiently.
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).
Learn about oil viscosity ratings and how they impact engine performance. Understand the importance of choosing the right oil for your vehicle.
Some manufacturers recommend multiple oil types, each applicable to different duty cycles and environments. If that's the case, then opt for the recommended oil that best matches your situation.
This guide will demystify the jargon and symbols commonly found on motor oil packaging, explaining viscosity ratings, API classifications, and other critical indicators. Knowing these can help ensure you select the best oil for your car’s performance and longevity.
This guide will help you navigate car oil ratings, explain how oil grades impact engine performance, and assist you in making the best choice for your vehicle.
Learn more about motor oil viscosity grades, low and high-temperature viscosity & more. Find out what oil viscosity you should use for your vehicle.
SAE ratings indicate oil viscosity for engine lubrication. Viscosity determines flow ability at different temperatures. Additives enhance oil properties like wear protection.
What are the different viscosity grades of engine oil? How do you know what the right viscosity grade is for your vehicle? The Society of Automotive Engineers (SAE) has developed a system for classifying oils according to their viscosity grade at low and high temperatures.
Engine oil numbers refer to the viscosity of the oil. Learn from the Repco team why these numbers are important to select the right oil for your car.