delta88Vehicle history and comps for 1966 Oldsmobile Delta 88 - including sale prices, photos, and more. Find Search Listings. 796,741 Follow Markets. 9,281 Explore Makes. 661 Auctions. 1,192This 1979 Oldsmobile Delta 88 Royale Sedan is finished in green over a matching velour interior and is powered by a 350ci V8 paired with a three-speed automatic transmission.