---
id: faq-0079
title: "What's the difference between synthetic and conventional oil?"
category: faq
subtopic: service-and-maintenance
page_type: faq
source_url: "https://www.castlechevymchenry.com"
tags: ["synthetic-oil", "conventional-oil", "oil-types"]
questions:
  - "Should I use synthetic or regular oil?"
  - "Is synthetic oil worth it?"
  - "What oil type does my Chevy need?"
related: [oil-change, maintenance-plan, engine-protection]
dealer: Castle Chevrolet McHenry
---

Conventional oil is refined from crude and works well for most driving. Synthetic oil is engineered for better performance, lasts longer between changes, and flows better in extreme temperatures. Your owner's manual specifies the best type for your Chevrolet-some newer models require synthetic. Synthetic costs more upfront but may save money over time since you change it less often. Both protect your engine when used correctly. Castle Chevrolet McHenry's Service Department recommends the right oil for your vehicle and uses only genuine Chevrolet products. Call (779) 600-2956 to discuss which oil is best for your Chevy.