1996 Chevrolet Blazer Owner's Manual - Page 270

What to Use Refer to the Maintenance Schedule to determine what kind of lubricant to use. See "Recommended Fluids and Lubricants" in the Index. 0 Protect against rust and corrosion. Help keep the proper engine temperature. Let the warning lights and gages work as they should. 0 Engine Coolant The coolingsystem in your vehicle is filled with new DEX-COOL TM (orange-colored, silicate-free) engine coolant. This coolant is designed to remain in your vehicle for 5 years or 100,000 miles (166 000 km), whichever occurs first. The following explains your cooling system and how to add coolant when it is low. If you have a problem with engine overheating, see "Engine Overheating" in the Index. A 50/50 mixture of water and the proper coolant for your vehicle will: 0 I NOTICE: TM 1 When adding coolant it is important that you use DEX-COOL (orange-colored, silicate-free) coolant meeting GM Specification 6277M. If silicated coolant is added to the system, premature engine, heater coreor radiator corrosion may result. In addition, the engine coolant will require change sooner at 30,000 miles (50 000 km) or 24 months whichever occurs first. -- Give freezing protection down to -34°F (-37 "C). Give boiling protection up to 265 "F (129°C). 6-22