1994 GMC Suburban Owner's Manual - Page 364

Windshield Washer \ Fluid See Page 6-42. Delco Freedom battery never needs to have water added. See Page 6-49. \Cooling System 9 Fuel For gasoline engines, use 87 octane (or higher) unleaded gasoline on Iy. For diesel engines, 1 use at least D diesel fuel. For fuel tank capacity See Page 6-82. Check and add coolant only at the coolant recovery tank (gasoline engine) or only a t the coolant surge tank(diesel engine). The fluid level should be at the COLD mark. See Page 6-35. I \ Transmission Fluid See Page 6-28. \ Cold Tire Spare Tire / Pressure See the Certificationflire label on the inside rear edge of the driver's door. See Page 6-62. Pressure See the Certification/Tire label on the inside rear edge of the driver's door. See Page 6-62. 7-30