2005 Nissan Sentra: What is the oil type and capacity?

The 2005 Nissan Sentra comes in a total of SRX different configurations, though only two different engines are used. You'll either have a 1.8L 4Cylinder or a 2.5L 4Cylinder under the hood. The smaller engine will have You using 2.9 quarts of SAE 5W-30 full synthetic motor oil, while the larger is filled with 4.2 quarts of the same. In a bind, You're able to substitute SAE 5W-40 conventional for short periods of time, but this is not recommended. When You use an oil with a higher viscosity (that's what those numbers in an oil's weight mean), You're introducing friction to the engine which can cause premature wear and tear. Using the oil with the lowest numbers will ensure that Your engine runs efficiently, even in the cold, so that it will last You for years to come.