When Should Winter Engine Oil Be Changed for Cars?
2 Answers
Winter engine oil for cars should be changed before the winter solstice. Below is relevant information about engine oil: 1. Classification: Engine oil is divided into full synthetic, semi-synthetic, and mineral oil. 2. Functions of engine oil: 1) As a lubricant: reduces friction and damage between moving parts. 2) As a coolant: absorbs heat generated in the engine combustion chamber and piston top, cooling the engine. 3) As a sealant: fills the space between piston rings and cylinder liners to prevent combustion pressure leakage. 4) As a cleaner: prevents pollutants and oxide impurities generated during combustion from adhering to the engine interior, maintaining cleanliness. 5) As a rust inhibitor: neutralizes acidic substances produced by combustion gases, preventing rust and corrosion in the engine.
I've been driving since the 1990s, and winter oil changes are particularly important. Experience has taught me that it's best to change the oil when temperatures consistently drop in late autumn, typically before mid-November in northern regions. Choose oil suitable for low temperatures, such as the 0W or 5W series—these oils have low viscosity and won't be too thick during cold starts, ensuring smooth engine ignition. Don’t just rely on the odometer; changing the oil early can prevent morning ignition issues. I usually change it every 5,000 kilometers or so, but the pre-winter change is especially crucial. While you're at it, check the battery charge and tires—batteries are less efficient in winter, and good tire traction is essential for safety. Small details in vehicle maintenance can prevent big troubles, ensuring a worry-free driving season.
