5W30 vs. 10W40
Key Differences
Comparison Chart
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Thickness
Viscosity at Low Temperature
Recommended For
5W30 vs. 10W40
Motor oil is one of the most essential elements of the vehicle. The motor oil is used to minimize the friction between the engine parts and other working parts of a vehicle. The engine parts rub together could cause wear and tear thus, results in damaging the engine and at last completely seizing it. As friction can be reduced or minimized by lubricating the contacting parts, motor oil is used for that purpose in vehicles. It does not only improve the efficiency and performance of the engine of the vehicle but also helps its parts to avoid friction. The commonly used motor oils are 5w30 and 10w40.
The first value of the oil indicates its viscosity under low-temperature conditions whereas the second value indicates the viscosity of motor oil under a high-temperature condition which usually is 100 degree Celsius. On the basis of their viscosity under various temperature conditions, these mآotor oils are considered different as per their usage.
What is 5W30?
5w30 is an artificially developed motor engine oil that has the viscosity of 5 under low-temperature conditions and a viscosity value of 30 under a high temperature that is universally considered as 100 degree Celsius. 5w30 is a less viscous motor oil under low and high temperature both as compared to the 10w40.
The ‘w’ in the name of the oil stands for ‘winter’. As the car is cool down on its startup, 5w30 works at its best lubricating all the engines and maneuvering around the seals very well. But as the car starts to get heat and the temperature rises, the already thin and less viscous 5w30 tend to work less efficiently. 5w30 is recommended for the cars with hydraulic tappets more. 5w30 is more suitable to be used in low-temperature areas and cold region.
What is 10W40?
10w40 is an artificially developed motor engine oil that has the viscosity of 10 under low-temperature conditions and a viscosity value of 40 under a high temperature that is universally considered as 100 degree Celsius. 10w40 is a more viscous motor oil under low and high temperature both as compared to the 5w30. The ‘w’ in the name of the oil stands for ‘winter’.
As the car is cool down on its startup, 5w30 works at its best lubricating all the engines and maneuvering around the seals very well, whereas 10w40 works more efficiently when a car is in motion and has a high temperature. 5w30 is recommended for the cars with hydraulic tappets more, whereas 10w40 is suitable to be used with all the rest sort of engine vehicles. 10w40 is mostly recommended to be used in areas with moderate temperature but it compatible to use with all kinds of heavy engines in any geographical conditions.
