What is your engine size?
CADILLAC SEVILLE TOURING SEDAN (STS) ***4.6 L L37 Northstar V8 ***300 hp (224 kW) at 6000 rpm /295 lb·ft (400 N·m) at 4400 rpm ***10w30 *** Engine, with filter..........7.5 quarts / 7.1liters TORQUES: *** Oil Drain Plug.....15 ft/lbs Good luck..
If you're talking about a 97 Cadillac Seville, with the 4.6-liter V8, it takes 7.5 quarts, with the filter.
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