What Causes Blue Smoke During Cold Starts in Winter?
1 Answers
Reasons for blue smoke during cold starts in winter: 1. Aging, cracking, or damage to the valve stem seals, necessitating replacement; 2. Prolonged incorrect driving habits or overloading, leading to premature engine wear and aging—timely engine repair or replacement is required; 3. Use of substandard engine oil or failure to change the oil for an extended period, resulting in overly thin oil and incomplete combustion. It is recommended to use high-quality engine oil. Engine oil, also known as motor lubricant, serves multiple functions including lubrication and wear reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion protection, and shock absorption. It is often referred to as the 'blood' of a car. Engine oil consists of base oil and additives. The base oil is the primary component, determining the fundamental properties of the lubricant, while additives compensate for and enhance the base oil's performance deficiencies, providing additional beneficial properties—making them a crucial part of the lubricant.