The short answer is yes, an air filter can affect RPM. Here’s a more detailed explanation:
An air filter’s primary purpose is to protect the engine by trapping dirt and debris before it can enter and cause damage. A dirty or clogged air filter will restrict airflow to the engine, which can lead to a loss of power and decreased RPM. In extreme cases, it can even cause engine failure.
It’s important to check your air filter regularly and replace it when necessary – typically every 12 months or 12,000 miles (whichever comes first). A clean air filter will help ensure your engine is running at peak performance and help maximize fuel economy.