Two litres is nuffink.
On my Focus the oil filter is a biatch to get to...... and it has to go back in almost blind, so its a bit of a pain to do.
There I was having finished the job and filled with 5 litres, so I thought I'd start it to get oil pressure. After 10 seconds running the oil pressure light was still on! 'That's odd' I thought...
And by jove it was right...... as all the lovely 5W/30 (£30 worth) was making its way (assisted slightly by that great invention.... gravity) onto the neighbours lawn
The ruddy oil filter seal had dropped off while I was fumbling the filter onto the block
At least the neighbout doesn't have to mow his grass much