Only in an emergency
Regular antifreeze such as, green, or red!
green
The 2002 GMC Savana runs on regular unleaded.
The 2002 GMC Yukon runs on regular unleaded.
The 2002 GMC Sierra-2500HD runs on regular unleaded.
The 2002 GMC Yukon-XL runs on regular unleaded.
The 2002 GMC Savana-Cargo runs on regular unleaded.
The 2002 GMC Sierra-1500 runs on regular unleaded.
The 2002 GMC Yukon typically requires about 12 to 14 quarts of coolant, which includes antifreeze, when performing a complete coolant change. It's important to use a 50/50 mixture of antifreeze and water for optimal performance. Always refer to the owner's manual for specific recommendations and capacities for your vehicle.
Dexcool
The 1998 GMC Sierra typically uses a conventional green ethylene glycol-based antifreeze coolant. It is important to use a coolant that meets the ASTM D3306 specifications. Some owners may also opt for extended-life coolants, but always check the owner's manual for specific recommendations and ensure compatibility with existing coolant. Regular maintenance, including coolant changes, will help protect the engine and cooling system.
Dex-cool