Determining the optimal motor oil for a vehicle is crucial for maintaining engine health and longevity. Two commonly used oil types are 5w30 and 10w30, and understanding their differences is essential.
The numbers in the oil designation refer to its viscosity, which indicates its thickness or resistance to flow. The lower the first number, the thinner the oil is at low temperatures, allowing for easier engine starting and oil circulation during cold starts. The second number represents the oil’s viscosity at high temperatures, with a higher number indicating better protection against wear and tear under strenuous driving conditions.