1993 Buick Regal Owner's Manual - Page 266

Capacities and Specifications Engine Code T1 (LH0)23.1L V-6 MFI Belt TensionsAutomatically controlled by an idler pulley. Tension adjustment should never be necessary. Fuel Tank Capacity 16.5 gallons/62.7 liters 1ransaxle - Cooling System Capacity 11.9 quarts/l2.6 liters Crankcase Capacity Oil change with filter change 4 quarts/3.8 liters Automatic Overdrive - Drain & Refil16 quartd5.7 liters MaintenanceItem Part Numbers3 Air Filter - A1 129C Fuel Filter - GF48 1 Oil Filter - PF5 1 Air Conditioning Capacity4(R12) - 2.25 Ibs. (1.02 kilograms) ~~ ~ PCV Valve - CV892C Radiator Cap - RC27 Spark Plug - R44LTSM, GAP 0.045" 1 8th Character of the Vehicle Identification Number. z Made in a GM plant in the United States. 3 Part numbers are AC type. 4 Air Conditioning Refrigerant - Not all air conditioning refrigerants are the same. If the air conditioning system in your vehicle needs refrig nt, be sure the proper refrigerant is used. If you're not sure ask your Buick dealer. 264