A 1997 Chevy 1500's oil type and quantity depend on the engine it has. There were several engine options for that year. You
must check your owner's manual for the precise specifications. The manual will tell you the correct oil type (likely 5W-30 or 10W-30, but this is NOT guaranteed) and the exact amount of oil needed.
Looking up the engine code (usually found on a sticker under the hood or on the driver's side doorjamb) and searching online might give you a general idea, but the owner's manual is the definitive source to avoid damaging your engine.
