---
id: guide-0011
title: "When should I change my oil, and why does it matter?"
category: guide
subtopic: maintenance-oil
page_type: guide
source_url: "https://www.castlevwcars.com"
tags: ["maintenance", "oil change", "intervals", "engine health"]
questions:
  - "How often should I get an oil change?"
  - "What's the difference between synthetic and conventional oil?"
  - "What happens if I skip an oil change?"
related: [first-service-visit, scheduling-service]
dealer: Castle Volkswagen of Schaumburg
---

Oil changes are one of the most important maintenance tasks-they keep your engine clean, protected, and running smoothly for years.

**Why oil matters:**

Engine oil lubricates moving parts, reduces friction, removes contaminants, and helps regulate temperature. Over time, it breaks down and loses effectiveness, putting your engine at risk of damage, poor performance, and costly repairs.

**Recommended intervals:**

Modern Volkswagen vehicles typically need an oil change every 10,000 miles or 12 months, whichever comes first. Synthetic oil may allow longer intervals (up to 15,000 miles), but always follow your owner's manual or ask our technicians.

**What we do:**

At Castle Volkswagen of Schaumburg, we:
- Drain old oil and replace the filter with genuine Volkswagen parts.
- Use manufacturer-recommended oil grade for your model.
- Inspect other fluids and systems during the visit.
- Document service so you have a complete maintenance record.

**Skip an oil change?** Your engine faces sludge buildup, increased wear, overheating, and potential failure-expensive problems that routine maintenance prevents.

**Ready for your next oil change?** **Call (847) 593-4700** to schedule a quick appointment. We make it easy to keep your Volkswagen healthy.