---
id: department-0005
title: "What should I know about oil changes and fluid service at Castle CDJR of Naperville?"
category: department
subtopic: service-oil-fluid
page_type: department
source_url: "https://www.castlecdjrnaperville.com"
tags: ["service", "maintenance", "oil", "fluids", "routine care"]
questions:
  - "How often should I get an oil change?"
  - "What fluids does my vehicle need?"
  - "Does Castle CDJR do fluid top-ups and transmission fluid?"
related: [service-maintenance-overview, service-scheduling]
dealer: Castle CDJR of Naperville
---

Regular oil changes are one of the most important things you can do for your engine's health. Fresh oil keeps moving parts lubricated and removes contaminants, extending engine life and performance.

Oil change intervals depend on your vehicle's age, make, and driving habits-typically anywhere from 5,000 to 10,000 miles (or as recommended by your owner's manual). Our technicians will advise the right schedule for your car.

Beyond oil, we service all your vital fluids: transmission fluid, coolant, brake fluid, power steering fluid, and windshield washer fluid. Keeping these levels and conditions optimal prevents breakdowns and costly repairs down the road.

When you bring your vehicle in, we'll check everything and let you know what's needed. We use quality, manufacturer-approved fluids to match your vehicle's specs.

Call **(630) 864-6683** to schedule your oil and fluid service, or book online at **castlecdjrnaperville.com**. We'll take great care of your investment.