Powertrack 439 DS Plus is a great 41 HP tractor. It comes with a 3-cylinder diesel engine that operates at 2200 RPM speed. Its fuel tank capacity is 50 liters. So, it supports long-duration operations. As far as engine oil capacity is concerned, we can only say that its engine doesn't have any storage for engine oil. You should use engine oil to ensure proper lubrication of the piston, bearings, crankshafts, and camshafts of the engine. It also helps farmers to keep the engine cool enough during usage. In addition, the proper quality of engine oil forms a thin film on moving parts. Because of this, it creates a seal between surfaces and prevents leakage. So, engine oil is important for the proper functioning of the Powertrack 439 DS Plus engine. So, you should have quality engine oil in the proper quantity. Don’t overfill the engine with the oil.