I've always used Paint Thinner (the cheapest hardware variety I can find), because some of it even is labled as "Paint Thinner / Solvent". It works well, and my skin absorbs it so well I can almost taste it, but so far there has been no obit notice in the local paper for me and I'm still waking up every morning...
Funny Story about solvent: When I was a kid, we had a 600 gallon buried gas tank for the tractors, and we'd just pump a half gallon into a big pan and use that to wash parts. My cousin Bub always used paint thinner. You may remember him from my first T ride. Anyway, back in the '50s, he found an old top load dish washer at the local dump, and decided it would make the perfect parts washer. He put 5 gallons of solvent in it, and he removed the pump, so the solvent would stay in it. Then he'd place his parts on the racks, close the lid, and let it run for an hour or so. Those old top loaders basically just had a blade in the bottom that would slosh the water around, and since it didn't know the difference between water and solvent, his would slosh the solvent. Actually, rather vigorously.
After turning it off, he'd open the cover, and vapors would come floating out all over the place. The parts looked nice and clean, but it was really very scary. One day someone commented on the scariness of the thing, so he opened it and stepped back, lit a match and threw it at the vapors. The first few matchs went out before reaching the vapors, but finally one made the flight still lit, and BOOOOM! The fire ball was about 10' around. Of course one would expect the solvent in the dish washer to create an enormous fire, but it didn't burn at all after the explosion. There was just one big flash. I suppose that used up all the Ox2, but for whatever reason, no big fire.
This spured us to try some other explosive ideas, the best of which was when we welded an old Hillman Minx driveshaft tube to a steel plate, welded a spark plug into the side, then dropped in a bit of carbide, some water, and stuffed a rag down it. A hit from a model T coil to light off the spark plug, and there was an enormous bang, and the rag went flying. (Carbide and water produces acetelyne gas.) That worked so well that we decided it needed more projectile, so we tried it with some flashlite batteries on top of the rag, and those went a long long ways. The last try was with a wooden dowel that just fit snuggly into the driveshaft tube, and a really big charge of carbide. That caused the Hillman driveshaft tube to part at the seam for about a foot, and of course the dowel went about 1/8 mile, fortunately it landed in an open field. I say fortunately, because we were aiming at a neighbors house at the time. The good news was that the welds all held, and I did the welding with my then brand new Victor gas outfit. I still have that Victor gas outfit, and use it almost everyday!
Ah the good old days, country boys do have their fun... and oh yeah, quite a bit of that "Tractor gas" did make it into our cars tanks. (Don't tell mom!)
Corley
PS Hillman Minx drive shaft tubes just aren't all that good!