Do Cars Need to Warm Up in Winter?
1 Answers
Cars need to warm up in winter, requiring idling for about a minute before driving slowly. The specific reasons are as follows: 1. When the engine is first started, the upper part lacks lubrication as there is no oil. It takes about 30 seconds for the oil pump to deliver oil to components like the pistons, connecting rods, and crankshaft. 2. After starting the vehicle, the idle lubrication hasn't fully circulated, making it prone to wear. Most engine wear occurs within the first three minutes of a cold start. 3. After sitting overnight, the lubricating oil on the engine's friction surfaces has mostly drained away, leaving them without protective oil films.