Do not mix different types of coolant. Using a different type of coolant (like traditional green coolant) can lead to serious engine damage.
To be absolutely certain, check your owner's manual. It will specify the exact type and specifications of coolant recommended by Chevrolet for your specific Silverado model and engine. The manual will often list acceptable alternative coolants that meet the same specifications as Dex-Cool. You can also look for a sticker under the hood that might indicate the recommended coolant type.
If you can't find your owner's manual, you can often find a digital copy online through the Chevrolet website or a reputable automotive parts website by entering your VIN.
