Understanding Oil Viscosity: Is 10W-30 Heavier Than 5W-30?
Discover the differences between 10W-30 and 5W-30 engine oils and their impact on performance.
Video transcript
Yes, 10W-30 is heavier than 5W-30 mainly at lower temperatures. The '5W' and '10W' refer to the oil's viscosity at cold temperatures; '5W' is thinner, offering better performance in cold starts. However, both have the same viscosity (30) at high operating temperatures, ensuring similar performance when the engine is warm.
Questions and answers
What does the 'W' in motor oil ratings stand for?
The 'W' stands for 'winter,' indicating the oil's viscosity rating in cold temperature conditions.
Can I use 10W-30 oil instead of 5W-30?
Yes, you can use 10W-30 instead of 5W-30, but it may affect performance in colder temperatures.
What is the best oil for cold weather?
5W-30 is generally better for cold weather because it is thinner at low temperatures, ensuring easier cold starts.
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