[stuart bowes]

+1 all very useful info but I would add to that, I use a bucket for draining

plus points being if you jack it to the right height the bucket is basically right up against the drain hole and the liquid doesn't blow around in the wind so much
also less chance of a spill

I then pour carefully from bucket into measuring jug (3 or more pours) and then into the oil disposal container (dispose responsibly!)

it's a nice easy way to both measure the fluid and also see it nice and easily for colour and if there's any bits floating. one would hope not

when it comes to filling up, pouring from a 20l keg into the measuring jug will be fun, you might want a 2nd pair of hands and an old towel laid out