1983 Buick Skyhawk Oil Type & Capacity

It depends on the engine: Custom, 2D Coupe, 1.8 0, Automatic uses 5W-30; Custom, 2D Coupe, 1.8 0, Standard, M19 uses 5W-30; Custom, 2D Coupe, 1.8 0, Standard, MK7 uses 5W-30; Custom, 2D Coupe, 1.8 0, Standard, MY7 uses 5W-30; Custom, 2D Coupe, 2.0 P, Automatic uses 5W-30; Custom, 2D Coupe, 2.0 P, Standard, M19 uses 5W-30; Custom, 2D Coupe, 2.0 P, Standard, MY7 uses 5W-30; Custom, 4D Sedan, 1.8 0, Automatic uses 5W-30; Custom, 4D Sedan, 1.8 0, Standard, M19 uses 5W-30; Custom, 4D Sedan, 1.8 0, Standard, MK7 uses 5W-30; Custom, 4D Sedan, 1.8 0, Standard, MY7 uses 5W-30; Custom, 4D Sedan, 2.0 P, Automatic uses 5W-30; Custom, 4D Sedan, 2.0 P, Standard, M19 uses 5W-30; Custom, 4D Sedan, 2.0 P, Standard, MY7 uses 5W-30; Custom, 4D Wagon, 1.8 0, Automatic uses 5W-30; Custom, 4D Wagon, 1.8 0, Standard, M19 uses 5W-30; Custom, 4D Wagon, 1.8 0, Standard, MK7 uses 5W-30; Custom, 4D Wagon, 1.8 0, Standard, MY7 uses 5W-30; Custom, 4D Wagon, 2.0 P, Automatic uses 5W-30; Custom, 4D Wagon, 2.0 P, Standard, M19 uses 5W-30; Custom, 4D Wagon, 2.0 P, Standard, MY7 uses 5W-30; Limited, 2D Coupe, 1.8 0, Automatic uses 5W-30; Limited, 2D Coupe, 1.8 0, Standard, M19 uses 5W-30; Limited, 2D Coupe, 1.8 0, Standard, MK7 uses 5W-30; Limited, 2D Coupe, 1.8 0, Standard, MY7 uses 5W-30; Limited, 2D Coupe, 2.0 P, Automatic uses 5W-30; Limited, 2D Coupe, 2.0 P, Standard, M19 uses 5W-30; Limited, 2D Coupe, 2.0 P, Standard, MY7 uses 5W-30; Limited, 4D Sedan, 1.8 0, Automatic uses 5W-30; Limited, 4D Sedan, 1.8 0, Standard, M19 uses 5W-30; Limited, 4D Sedan, 1.8 0, Standard, MK7 uses 5W-30; Limited, 4D Sedan, 1.8 0, Standard, MY7 uses 5W-30; Limited, 4D Sedan, 2.0 P, Automatic uses 5W-30; Limited, 4D Sedan, 2.0 P, Standard, M19 uses 5W-30; Limited, 4D Sedan, 2.0 P, Standard, MY7 uses 5W-30; Limited, 4D Wagon, 1.8 0, Automatic uses 5W-30; Limited, 4D Wagon, 1.8 0, Standard, M19 uses 5W-30; Limited, 4D Wagon, 1.8 0, Standard, MK7 uses 5W-30; Limited, 4D Wagon, 1.8 0, Standard, MY7 uses 5W-30; Limited, 4D Wagon, 2.0 P, Automatic uses 5W-30; Limited, 4D Wagon, 2.0 P, Standard, M19 uses 5W-30; Limited, 4D Wagon, 2.0 P, Standard, MY7 uses 5W-30; T-Type, Automatic uses 5W-30; T-Type, Standard, M19 uses 5W-30; T-Type, Standard, MK7 uses 5W-30; T-Type, Standard, MY7 uses 5W-30.

Oil capacity depends on the engine: Custom, 2D Coupe, 1.8 0, Automatic holds 3.0 quarts with filter; Custom, 2D Coupe, 1.8 0, Standard, M19 holds 3.0 quarts with filter; Custom, 2D Coupe, 1.8 0, Standard, MK7 holds 3.0 quarts with filter; Custom, 2D Coupe, 1.8 0, Standard, MY7 holds 3.0 quarts with filter; Custom, 2D Coupe, 2.0 P, Automatic holds 4.0 quarts with filter; Custom, 2D Coupe, 2.0 P, Standard, M19 holds 4.0 quarts with filter; Custom, 2D Coupe, 2.0 P, Standard, MY7 holds 4.0 quarts with filter; Custom, 4D Sedan, 1.8 0, Automatic holds 3.0 quarts with filter; Custom, 4D Sedan, 1.8 0, Standard, M19 holds 3.0 quarts with filter; Custom, 4D Sedan, 1.8 0, Standard, MK7 holds 3.0 quarts with filter; Custom, 4D Sedan, 1.8 0, Standard, MY7 holds 3.0 quarts with filter; Custom, 4D Sedan, 2.0 P, Automatic holds 4.0 quarts with filter; Custom, 4D Sedan, 2.0 P, Standard, M19 holds 4.0 quarts with filter; Custom, 4D Sedan, 2.0 P, Standard, MY7 holds 4.0 quarts with filter; Custom, 4D Wagon, 1.8 0, Automatic holds 3.0 quarts with filter; Custom, 4D Wagon, 1.8 0, Standard, M19 holds 3.0 quarts with filter; Custom, 4D Wagon, 1.8 0, Standard, MK7 holds 3.0 quarts with filter; Custom, 4D Wagon, 1.8 0, Standard, MY7 holds 3.0 quarts with filter; Custom, 4D Wagon, 2.0 P, Automatic holds 4.0 quarts with filter; Custom, 4D Wagon, 2.0 P, Standard, M19 holds 4.0 quarts with filter; Custom, 4D Wagon, 2.0 P, Standard, MY7 holds 4.0 quarts with filter; Limited, 2D Coupe, 1.8 0, Automatic holds 3.0 quarts with filter; Limited, 2D Coupe, 1.8 0, Standard, M19 holds 3.0 quarts with filter; Limited, 2D Coupe, 1.8 0, Standard, MK7 holds 3.0 quarts with filter; Limited, 2D Coupe, 1.8 0, Standard, MY7 holds 3.0 quarts with filter; Limited, 2D Coupe, 2.0 P, Automatic holds 4.0 quarts with filter; Limited, 2D Coupe, 2.0 P, Standard, M19 holds 4.0 quarts with filter; Limited, 2D Coupe, 2.0 P, Standard, MY7 holds 4.0 quarts with filter; Limited, 4D Sedan, 1.8 0, Automatic holds 3.0 quarts with filter; Limited, 4D Sedan, 1.8 0, Standard, M19 holds 3.0 quarts with filter; Limited, 4D Sedan, 1.8 0, Standard, MK7 holds 3.0 quarts with filter; Limited, 4D Sedan, 1.8 0, Standard, MY7 holds 3.0 quarts with filter; Limited, 4D Sedan, 2.0 P, Automatic holds 4.0 quarts with filter; Limited, 4D Sedan, 2.0 P, Standard, M19 holds 4.0 quarts with filter; Limited, 4D Sedan, 2.0 P, Standard, MY7 holds 4.0 quarts with filter; Limited, 4D Wagon, 1.8 0, Automatic holds 3.0 quarts with filter; Limited, 4D Wagon, 1.8 0, Standard, M19 holds 3.0 quarts with filter; Limited, 4D Wagon, 1.8 0, Standard, MK7 holds 3.0 quarts with filter; Limited, 4D Wagon, 1.8 0, Standard, MY7 holds 3.0 quarts with filter; Limited, 4D Wagon, 2.0 P, Automatic holds 4.0 quarts with filter; Limited, 4D Wagon, 2.0 P, Standard, M19 holds 4.0 quarts with filter; Limited, 4D Wagon, 2.0 P, Standard, MY7 holds 4.0 quarts with filter; T-Type, Automatic holds 3.0 quarts with filter; T-Type, Standard, M19 holds 3.0 quarts with filter; T-Type, Standard, MK7 holds 3.0 quarts with filter; T-Type, Standard, MY7 holds 3.0 quarts with filter.

Most 1983 Buick Skyhawk owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — Buick recommends intervals based on driving conditions, not just mileage.

Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1983 Buick Skyhawk. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.