I would definitely run 5w40 in the warm weather, but if it gets cold where you live you can switch to 5w30 because it will protect your engine better on ice cold starts.
The number after the ‘w’ represents the thickness of the oil in normal or warmer temperatures.
Overall It can be said 5w-40 is comparatively a thicker oil than 5w-30. 5W40 engine oil offers a higher viscosity at operating temperatures compared to 5W30, making it a popular choice for high-performance and high-mileage vehicles.
The 5w40 will be thicker when warm.
If the index is low, the lubricant should not be too viscous to allow the starter to cold start the motor and pump it through the pump.
The price will depend on the brand, though. Feb 3, 2022 · The viscosity of 5W40 is from 12. This oil grade provides enhanced protection at high temperatures and under heavy loads, making it suitable for demanding driving conditions.
For the sake of engine longevity, especially in a tuned R, I would stick with 5W40 regardless of the year.
The 5w40 has a higher viscosity in warmer temperatures than the 5w30. For example, the 5w40 creates a thicker and more powerful oil film that seals gaps excellently and is. 5w30 has lower viscosity hence it is suitable to use in hot or lower temperatures.
The number preceding the ‘w’ indicates the oil’s viscosity (or thickness) at low temperatures, and the number after it indicates viscosity at higher temperatures (100°C for. The distinction is between operating temperatures of ’30’ and ’40’ status.
The blending of both oils won’t do the engine any harm, at least not immediately.
For the sake of engine longevity, especially in a tuned R, I would stick with 5W40 regardless of the year.
However, both. 5 mPas.
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. · #3 · Mar 3, 2018.
Depends on your climate as well.
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This doesn’t pose any harm to your engine anyway. Both oils have the same viscosity of 5 in winter conditions, and therefore it’s relatively low. 5W30 and 5W40 oils are mainly used for winter or cold temperatures; still, they have thinner quality for the hot temperatures, 5W30 can be used from -30° to.
The choice between 5w40 motor oil and an alternative like 10w40 depends on the winter temperature in your region. hence 5 is the same. 5w40 is better for high performance engines and extends the life of your engine by protecting it against wear and. This describes that 5w-40 retains more thickness at the engine’s operating temperature than 5w-30. Dec 8, 2021 · The price of 5w40 motor oil and the 0w40 motor oil is not very different. Mar 16, 2023 · 5W40 Engine Oil: The High-Viscosity Alternative.
Although the 5W40 behaves like five-rated single-grade engine oil in winter conditions, it doesn’t become thinner than the 40-rated single-grade engine oil when the temperature is high.
The kinematic viscosity of the 5w30 type is between 9. .
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For 5w40 oil: Kinematic viscosity is between 12.
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5w40 is engine oil that indicates the weight and viscosity of the engine.