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Q what do engine oil numbers mean
MabelHoratio
BoyceMoore Release Time: July 3, 2024, 5:45 AM
Engine oil numbers, such as 5W-30, refer to the oil’s viscosity, indicating how well it flows at low and high temperatures. The first number, followed by ‘W’ (for winter), measures the oil’s flow at 0°F, showing its cold-weather starting capability. The second number indicates the oil’s thickness at 100°C, representing its ability to lubricate at high temperatures without becoming too thin. These classifications, established by the Society of Automotive Engineers (SAE), help ensure engines operate efficiently across different climates by recommending the appropriate oil viscosity. Choosing the right oil based on these numbers is crucial for engine protection, performance, and fuel efficiency. Always consult your vehicle’s manual to select the oil best suited for your specific engine requirements.
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