# What's The Difference Between 5W-30 And 5W-40 Motor Oil?

> When choosing between two different types of motor oil for your car, it is helpful to understand these oil classifications.

- **Source:** [SlashGear](https://www.slashgear.com/2024362/5w30-vs-5w40-motor-oil-whats-the-difference/?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=691b18bf1258495d1da83fbe)
- **Published:** 2025-11-17
- **Category:** Cars
- **Tags:** #between #motor #difference #ability #automotive #before #choosing #classifications
- **Canonical:** http://localhost:4321/a/691b18bf1258495d1da83fbe

---

_GearOpen's distilled summary. The full original article is published at SlashGear (source link above); GearOpen does not republish the source's full text._