---
id: guide-0015
title: "What maintenance does my car need at different mileage milestones?"
category: guide
subtopic: maintenance-schedule
page_type: guide
source_url: "https://www.castlecadillacmchenry.com"
tags: ["maintenance", "schedule", "mileage", "guide"]
questions:
  - "What maintenance is due at 30,000 miles?"
  - "What about 60,000 or 100,000 mile service?"
  - "How do I follow a maintenance schedule?"
  - "What's considered preventive maintenance?"
related: [maintenance-fluids, maintenance-brakes, warranty-basics]
dealer: Castle Cadillac McHenry
---

Following a maintenance schedule keeps your vehicle reliable, preserves resale value, and maintains warranty coverage. While specific intervals depend on your make and model, here's a general roadmap.

## Key Mileage Milestones
**At 15,000-30,000 miles:** Oil and filter change, tire rotation. **At 30,000-60,000 miles:** Engine air filter, cabin air filter, transmission fluid check. **At 60,000-90,000 miles:** Spark plugs (some vehicles), deep coolant and brake fluid inspection. **At 100,000+ miles:** Transmission fluid change, suspension and steering inspection, comprehensive fluid top-ups.

## Between Major Services
Check tire pressure and tread monthly, inspect brakes and lights regularly, and top off windshield washer fluid as needed.

## Personalized Schedule
Your owner's manual contains your vehicle's exact schedule. Castle Cadillac McHenry's Service team can create a customized plan and send reminders. Call **(779) 265-4427** to discuss your vehicle's needs.