---
id: guide-0014
title: "What fluids and filters does my vehicle need, and how often?"
category: guide
subtopic: maintenance-fluids
page_type: guide
source_url: "https://www.castlechevycars.com"
tags: ["maintenance", "fluids", "filters", "service"]
questions:
  - "When do I change my oil?"
  - "What about transmission fluid?"
  - "Do I need a new air filter?"
  - "How often should I change coolant?"
related: [maintenance-schedule, service-overview]
dealer: Castle Chevrolet of Villa Park
---

Every fluid and filter in your vehicle has a job and a service life. **Oil and filter** changes are the foundation-typically every 5,000-7,500 miles for conventional oil, or longer for synthetic, depending on your model and driving.

**Other essentials** include coolant (usually every 30,000-100,000 miles), transmission fluid (varies widely), brake fluid, power-steering fluid, and windshield washer fluid. Your owner's manual lists exact intervals for your Chevrolet.

**Filters** like cabin air, engine air, and transmission filters also need periodic replacement to keep everything running smoothly.

**Next step:** Check your owner's manual for your vehicle's specific schedule, or call Castle Chevrolet of Villa Park's Service Department at (630) 279-5200. We'll remind you when service is due and use genuine OEM parts to keep your warranty intact.