[Bongos2U]

Originally Posted by wjones14

Dexos1 is not necessarily a synthetic blend. Mobil 1 5W-30 Full Synthetic has the green dexos1 label on the container:

https://www.walmart.com/ip/Mobil-1-5...-5-qt/17034372

This is from the 2018 Camaro Owners manual:

Recommended Fluids, Lubricants, and Parts:

Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended.

Viscosity Grade: Use SAE 5W-30 viscosity grade engine oil.