lesuther wrote:MEK and other aromatic solvents are reasonably safe to use if you are a cockroach. The rest of us have to be a bit cautious with it. Significant exposure (occupational) will turn your brain tissue into swiss cheese.
It will, curiously enough, also ruin your sense of smell. There are worse chemicals to be around but none that I know of that are still available at your local big box store.
As far as simple green goes, I've never had any luck with it cleaning petroleum products. It just balls up and smears. I had a guy come and power clean the bilges in my (damn) boat. He used a commercial product that was safe and not solvent based. He got it at some big truck washing outfit. One of our big rig drivers may know what it is. It comes in gallons and fives.