1999 GMC Sierra 1500 Pickup Owner's Manual - Page 325

When the enginecompartmentishot,the mark. Whentheenginecompartment COLD mark. level shouldbeat the FULL is cool,thelevel should beat the FULL F \ ' 'k + E . .e "' - : K2694 What to Add: Refer to theMaintenanceScheduletodeterminewhat kind of fluid to use. See"RecommendedFluidsandLubricants'' in theIndex. r When adding steering power fluid or making a complete fluid change, alwaysuse the properfluid.Failure to use the proper fluid cancause leaksanddamagehosesandseals. I 6-47