Is It Necessary to Warm Up the Car Before Driving?
1 Answers
Reasons why warming up the car is necessary are as follows: 1. After the car has been parked for a long time, the engine oil flows back into the oil pan at the bottom of the engine. Therefore, when starting the engine after a long period of inactivity (such as overnight), the upper part of the engine is without oil and lacks lubrication. It takes about 30 seconds after starting for the oil pump to circulate the oil to the parts that need lubrication the most, such as the pistons, connecting rods, and crankshaft. 2. Before the engine reaches its operating temperature (approximately between 90-110 degrees Celsius), the fuel supply system cannot effectively vaporize the gasoline completely due to the low temperature (liquid gasoline vaporizes when it reaches its boiling point).