---
id: faq-0070
title: "When do I need to replace my air filter?"
category: faq
subtopic: service-and-maintenance
page_type: faq
source_url: "https://www.castlehyundaioaklawn.com"
tags: ["maintenance", "filter", "engine"]
questions:
  - "How often should I change my air filter?"
  - "What happens if I don't replace my air filter?"
  - "What's the cost to replace an engine air filter?"
related: [cabin-air-filter, maintenance-schedule, fuel-efficiency]
dealer: Castle Hyundai Oak Lawn
---

Engine air filters typically need replacement every 15,000 to 30,000 miles, depending on your driving environment and air quality. A clogged air filter reduces fuel efficiency and engine performance. If you drive in dusty conditions, you may need replacements more often. It's one of the easiest and most affordable maintenance items. Castle Hyundai Oak Lawn's Service team can inspect your air filter during any service visit and let you know if it needs replacing. We carry genuine Hyundai filters and can swap it in minutes. Call (708) 422-9300 to add an air filter check to your next appointment or for current pricing.