---
id: guide-0014
title: "What fluids and filters does my Chevrolet need?"
category: guide
subtopic: maintenance-fluids
page_type: guide
source_url: "https://www.castlechevymchenry.com"
tags: ["maintenance", "fluids", "filters", "mileage"]
questions:
  - "When do I need an oil change?"
  - "What about transmission fluid?"
  - "How often should I change my air filter?"
  - "What's the coolant service schedule?"
related: [maintenance-schedule, winter-prep, summer-prep]
dealer: Castle Chevrolet McHenry
---

Fluids and filters are the lifeblood of your Chevrolet. Keeping them fresh keeps your engine running smoothly and extends vehicle life.

## Key Fluids & Service Intervals

**Engine Oil & Filter:** Every 3,000-10,000 miles (varies by model and oil type; check your owner's manual).

**Coolant:** Typically flushed every 30,000-100,000 miles or per your manual.

**Transmission Fluid:** Often 60,000-100,000 miles; some transmissions are sealed.

**Brake Fluid:** Usually inspected annually; replaced if contaminated.

**Air Filter & Cabin Air Filter:** Every 15,000-30,000 miles or as needed.

## Why It Matters

Dirty fluids lose effectiveness; clogged filters reduce performance and fuel economy. Using genuine Chevrolet fluids ensures compatibility and protection.

Our Service team can review your owner's manual and get you on the right schedule. Call **(779) 600-2956** to book a fluid service or ask about our maintenance packages.