5w30 Any premium brand high detergent oil.
what type of engine??
4.5 quarts
Gastrol GTX SAE 5w30 any major brand. If the engine has over 100,000 miles on it use High Mileage Oil.
The oil capacity for a 1991 Buick Century 3.3 is approximately 5 quarts. The recommended oil type is 10 W 30.
should be located on front of engine above the oil filter.
10 30
It is important to use the right types of fluid in a car. The engine oil for a 1995 Buick Century is 5w-30 or 10w-30.
10w 40w
The oil filter should be on the passenger side of the engine. It is located just past the wheel. It is a screw on type.
The 1989 Buick Century oil sender is located inside of the oil pan. You will need to remove the oil pan in order to view the oil sender.
The oil capacity for an oil and filter change is 4.5qts. If you choose to not change the filter it would only be 4.0qts of oil. qts=quarts.
Bottom of the oil pan.