2008 Ford Ranger Oil Type and Capacities
Ford recommends that the 2008 Ford Ranger takes 4.0 quarts (3.8 L) of 5W-20 oil in the 2.3 L engine, 4.5 qt (4.3 L) of 5W-20 in the 3.0 L engine and 5.0 qt (4.7 L) of 5W-30 oil in the 4.0 L engine. The Motorcraft oil filter that should be used is FL-400S and FL-820S, for the 2.3/3.0 and 4.0 L respectively.