Oil marks on dipstick

It isn't necessary to use such an elaborate system to do that. My ~$25 12-v pump gets the job done, and as far as I can tell, gets out at least as much as opening the plug. Not having to raise the car and conspicously crawl under it is a big improvement where car maintanance is banned. It also saves a lot of time and mess.

 

And how do you change the oil filter???