1993 Oldsmobile 88 Owner's Manual - Page 130

The a r conditioner compressor operates i l in a l three air conditioner positions, and in DEFOG and DEF (Defrost) when the outside temperature is above freezing. When the air conditioner is on, you may sometimes notice slight changes in your vehicle's engine speed and power. This is normal, because the system is designed to cycle the compressor on and off to keep the fuel desired cooling and help economy. Heating When outside temperatures cold, are HEAT and setting the selector switch to the temperature control lever toward WARM will send heatedair through the heater ducts, and some through the defroster vents. De&( hg Windows with ~ut3eason Climate Control Ventilation For mild outside temperatures, when little heating or cooling is needed, set Defmsting the selector switchto VENT. Air flow The DEF setting directs mostair is through the instrument panel outlets. through the defroster vents, and some Set the temperature control lever to the through the heater ducts. temperature desired. Slide the temperature control lever to the far right. Use oncold, humid days with two or To quickly defog the windshield, set the more passengers when the windows fog.selector switch to DEF and the fan The air is directed through the heater, control toHIGH. defrost, and side window vents. Defogging 19 2