---
id: guide-0014
title: "What fluids and filters does my Hyundai need, and when?"
category: guide
subtopic: maintenance-fluids
page_type: guide
source_url: "https://www.castlehyundaioaklawn.com"
tags: ["maintenance", "fluids", "filters", "schedule"]
questions:
  - "When do I need an oil change?"
  - "What about transmission fluid, coolant, and brake fluid?"
  - "How often should I replace air filters?"
  - "What's the cost of fluid maintenance?"
related: [maintenance-schedule, maintenance-brakes]
dealer: Castle Hyundai Oak Lawn
---

Staying on top of fluids and filters keeps your engine running smoothly and extends your vehicle's life.

**Oil and filter:** Usually every 5,000-10,000 miles, depending on your model and oil type. Check your owner's manual for specifics.

**Other key fluids:**
- **Coolant:** Typically flushed every 30,000-60,000 miles to prevent overheating and corrosion.
- **Transmission fluid:** Check level regularly; full flush intervals vary by transmission type.
- **Brake fluid:** Should be flushed every 2 years to maintain stopping power.
- **Air filter:** Often replaced every 15,000-30,000 miles, or as needed.

**Next step:** Let Castle Hyundai Oak Lawn's Service team handle it. They know your Hyundai's exact requirements and use genuine Hyundai fluids and filters. Call (708) 422-9300 to schedule your service or ask about a maintenance plan that fits your mileage.