Draining & disposing of old engine or gear box oils can be a rather messy business if you haven't got the correct tools for the job. You need one of these large drain pans from Yaqiya. These are low profile pans that will need the minimum amount of space under the drain plug. It has sufficient volume for the largest vehicle sump. (16 Litre nominal capacity.) Once you have drained your sump oil into the pan, simply replace your sump plug, slide out the pan & transfer the old oil into a waste container using the built in spout on the oil drain pan. The nominal oitside diameter of the spout is 35mm & the drain pan does not come with an overall lid. Couldn't be simpler.