What Causes the Highlander to Burn Engine Oil?

[IsaacMarie]

Burning engine oil in the Highlander is caused by either normal wear or abnormal wear. Reasons for burning engine oil: Normal wear: This is a common occurrence after the vehicle has been driven for a certain number of kilometers. Typically, this happens around 200,000 kilometers, but the lifespan of the engine can vary significantly depending on the vehicle model, driving habits, and regional factors (such as air dust content). Abnormal wear: Early wear due to abnormal causes can result from product quality issues or improper usage. If the vehicle starts burning engine oil during the warranty period, promptly contact the manufacturer's 4S store for repairs or engine replacement. Causes of early engine wear: Using substandard engine oil, failing to change the oil and oil filter on time, starting the engine with a heavy throttle when cold, operating the engine with insufficient oil for extended periods, running the engine at high temperatures for long durations, operating under long-term high-load and high-speed conditions (engine speed exceeding 4,000 RPM), running the engine in poor air quality (excessive dust levels) or failing to replace the air filter on time, insufficient oil pump pressure, low oil pressure, clogged oil passages, etc.