Quoted from dkrubis:That's what I was thinking too for a cleaner. I read thru a lot of old posts that mentioned using that product.
Naphtha (lighter fluid) only "cleans" your playfield if it's a little dusty, I never understood the hype, it's only really supposed to remove old wax. Not clean. It does an awful job.
I have delicate EMs and I was scared by Pinside telling me how abrasive Novus is so I used Naphtha and had quite a few dirty playfields for a while and tried to act like it was an improvement. I shopped an EM for a friend who put it on location at his arcade and he paid me to fix the machine, clean it, and wax it - I cleaned it with Napatha and warned him about the "awful" Novus and it looked okay and then the next time I came in he politely told me he went over it with Novus 2 - and it really looked amazing, with no harm done. Night and day difference. Since then I use Novus 2 on my own machines and they turn out great. And I scrub HARD. It's safe. Especially on those new machines above anything, ultra safe, they're all coated.
I have determined that I guess the people who find results with Napatha are cleaning games that have been taken care of and probably deep cleaned already recently, perhaps before they bought it. Kind of like Grandma's dusting, hah, or maybe wiping down an already very clean machine for routine maintenance. When you actually go and try to bring a project machine (small project or big project) back to life it does nothing. It will clean off surface dirt but does nothing for ground-in dirt. I use it to get old wax off but that is it. Otherwise it seems useless.