I like MEK
I've used MEK professionally for bout 13 yrs... I sure hope you following the appropriate safety procedures with that s***. It'll fawk up your blood cells. I have lots of sick friends from MEK. It gives me nausea now. Lacquer thinners are not much better.
In some cites there are companies which go shop to shop changing out washer solvent. They distribute a low odour version of mineral spirits.
Varsol or Mineral Spirits is all I would use.
For the tard who suggested Avgas....don't use that in your parts washer. Chances are you will catch fire, get far too much lead in you too.
I've used avgas in a sprayer on oily engines to clean, but that practice is very old thinking.
One static spark is all it takes.