Practice question

In the engine oil viscosity rating '10W-40', what does the '10W' indicate?

  1. The oil's flow characteristics at low temperatures (winter)
  2. The oil's maximum operating temperature of 10 degrees Celsius
  3. The oil's weight in kilograms per liter
  4. The oil change interval of 10,000 kilometers

Answer: A — The oil's flow characteristics at low temperatures (winter)

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