Practice question
Why is the oil filter usually replaced at the same time as the engine oil during a service?
- The old filter is already saturated with contaminants, so replacing it ensures the new oil stays clean
- The oil filter generates electrical current for the ignition
- The oil filter increases the compression ratio of the engine
- The oil filter controls the motorcycle's idle speed
Answer: A — The old filter is already saturated with contaminants, so replacing it ensures the new oil stays clean
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