1995 GMC Sonoma Owner's Manual - Page 111

Gages Engine Coolant Temperature Gage 210 This gage showsthe engine coolant temperature. If the gage pointer moves into the red area, your engine is too hot! It means that your engine coolant has overheated. If you have been operating your vehicle under normal driving conditions, you should pull off the road. stop your vehicle and turn off the engine as soon as possible. Hot Coolant Can Burn you Badly! In Prohlerm On The Road, this manual explains what to do. See "Engine Overheating" in the Index. Oil Pressure Gage The oil pressure gage shows the engine oil pressure in psi (pounds per square inch) when the engine is running. Canadian vehicles indicate pressure in kPa (kilopascals). Oil pressure may vary with engine speed, outsidetemperature and oil viscosity, but readings above the low pressure zone indicate the normal operating range. A reading in the low pressure zone may be caused by a dangerously low oil level or other problems causing oil pressure. low 2-65