Most of the recommendations call for using non ammonia cleaners etc. I am here to tell you, that kind of dirt does not come off without some some heavy duty degreaser. I would use DAWN dish soap. And if it were mine personally, I would use ammonia to remove that stuff. Id rather have a clean lamp than a dirty one, But thats me and depending on age and condition who knows what would happen.

Thanks funny, people in antique forum almost all said use ammonia

Best cleanser I've EVER found for ANYTHING is Ala's Totally AWESOME. No acid, no amonia, no bleach and non-flammable. Cleans everything washable - spray on, wipe off. It practically melts it off instantly. Washing walls, door facings - this house wouldn't be w/o it. Get it at the $ stores. I've noticed Walmart has started carrying it too.

For that price I have to try it lol. Ps the dollar stores in southern NY are $1.25 now.

Sounds good to try Slow. I know that sticky tacky greasy dusty stuff just wont come off without ammonia and dawn. Like I said if it was mine, a one time cleaning with ammonia I dont think would hurt, But I cant judge for someone else. But that stuff sounds cool to try.

My friend swears by "awesome " cleaner.
I'm afraid to try it..I hate to clean ~ she said she couldn't stop! :-0!
Sorry, I'm not a help on. The SG lamp. I couldn't resist the 'awesome 'plug !

409 spray cleaner is good at cutting through sticky tacky greasy stuff too. That's what I use on almost everything. However, I've put the "Awesome" cleaner on the grocery list and will try it.

I know this is an old thread but I thought I'd comment. I have used Tilex bathroom cleaner on some very greasy things (stainless steel shelving that I bought from a KFC, a stove hood vent that hadn't been cleaned in a very long time) and it worked great. I just sprayed it on, left it sit for several minutes, then wiped it off and all the nasty dirt and grease came off with it. Then I used a damp cloth to wipe of the Tilex. I was amazed that it seemed to act as a degreaser.