Uploaded November 2017 | Updated September 2026, 3 weeks ago

---

Engine oil is often taken for granted and selecting the correct engine oil is vital for prolonging engine life and efficiency. The wrong oil may cause irreparable damage and increase vehicle emissions. It is essential that all technicians understand engine oil specifications and how to match them to manufacturer’s recommendations.

For the best online automotive training around, visit automatetraining.com and become a better technician today.