You MUST state engine and year when asking questions like that.
5
4.5 qts. with a filter change
two
Need to now
The 1992 Buick Roadmaster typically requires about 5 quarts (approximately 4.7 liters) of engine oil when equipped with the standard 5.7L V8 engine. It's always best to check the owner's manual for the exact specifications for your specific vehicle, including oil capacity and type.
24 lb.
4.5 quarts
15 city 23 highway
9 quarts.
The 1999 Buick Century Glove Compartment Manual on the inside of the last page shows: Crankcase (Engine Oil with filter change) 3100 Engine 4.5 quarts (4.3L)
None, the collector's Edition was 1996, and every Roadmaster made in '96 had the Collector's Edition badging.
with a filter change also, it will take 4 or 4.5 qts