Blue can. The topsider really is the cleanest and easiest way to change the oil on this engine. Once I took my 97 E320 to the mech to do synth oil change and once he opened the drain plug it really pours down. Just imagine it going on your face and clothes. Unless you have stands how do you plan on getting under the front of the car. It is really low on the ground. Barely any moving space to unscrew the belly pan.