I used a big container that originally contained creosote (around 8-9 litres) that I drained oil into from my Fiesta van. Put the sump plug back in, replaced oil filter, topped up with oil, then rolled the van backwards off the ramps. Then I heard this grinding sound, like the engine was grounding out. Drove it back up the ramps to realise I'd spilt 5 litres of oil on the road.
Peter