What octane gas does a Chevy Silverado require?

The recommended octane rating for a Chevy Silverado depends on the *specific year and engine* of the truck. The owner's manual will always specify the required octane rating. Generally, many Silverado models recommend regular unleaded (87 octane), but some higher-performance engines may require mid-grade (89 octane) or premium (91 octane or higher). Checking your owner's manual is crucial to avoid potential engine damage.