---
id: faq-0071
title: "What's the difference between synthetic and conventional oil?"
category: faq
subtopic: service-and-maintenance
page_type: faq
source_url: "https://www.castlehyundaioaklawn.com"
tags: ["maintenance", "oil", "engine-care"]
questions:
  - "Should I use synthetic oil in my Hyundai?"
  - "Is synthetic oil better than conventional?"
  - "What oil type does my car need?"
related: [oil-change, maintenance-schedule, engine-performance]
dealer: Castle Hyundai Oak Lawn
---

Synthetic oil lasts longer-often 7,500 to 10,000 miles or more-and performs better in extreme temperatures and heavy driving. Conventional oil costs less but requires more frequent changes. Some newer Hyundai models are designed for synthetic or synthetic-blend oil for better efficiency and engine protection. Your owner's manual specifies what your specific model needs. Castle Hyundai Oak Lawn's Service Department recommends the right oil type for your Hyundai and can discuss the long-term benefits. Using the correct oil keeps your warranty valid and your engine running smoothly. Call (708) 422-9300 to ask about your vehicle's oil requirements or to schedule your next oil change.