OER Parts offers a wide selection of Oil System & Parts for your 1972 Buick GS 455. OER Parts offers 1972 Buick GS 455 Bypass Valves, 1972 Buick GS 455 Dipsticks and Tubes, 1972 Buick GS 455 Filter Adapters, 1972 Buick GS 455 Oil Coolers, 1972 Buick GS 455 Oil Filters, 1972 Buick GS 455 Oil Pan Baffles, 1972 Buick GS 455 Oil Pans, 1972 Buick GS 455 Oil Pickup Tubes, 1972 Buick GS 455 Oil Pumps, and 1972 Buick GS 455 Oil Senders.