What Are the Effects of Not Changing the Air Filter for Two Years?

[StConnor]

Not changing the car's air filter for two years can have the following main effects: 1. If the air filter hasn't been replaced for two years, it is likely already clogged, which will obstruct airflow, reduce the engine's air intake, leading to decreased engine power and a significant increase in fuel consumption. 2. Additionally, a dirty air filter will reduce its filtering efficiency, allowing small sand particles and impurities to enter the engine. Over time, these contaminants can cause wear and damage to the cylinder walls, pistons, piston rings, and valves. 3. Extension: In reality, the replacement interval for the air filter should be analyzed based on actual conditions. Under normal city driving conditions, it can be replaced every 20,000 kilometers.