MadMace
SILVER Star
I've had really mixed results with Easy Off - I went through a lot of it cleaning up my 283 (before I figured out it had eaten its main bearings) and my trans/transfer case. It got rid of looser stuff and definitely de-greased, but didn't seem to cut the really gnarly, caked on stuff. The only thing that seems to get that was abrasives and scraping.
It can be harsh on certain types of metal, that is for sure. I wouldn't use it anywhere I cannot completely control what it gets on. Although Easy-Off states it will only discolor aluminum and not damage it, I would not use it there or on any metals that are alloys. I have used it only on steel. What I have found to work very well with the Easy-Off is time. Spray it on, wait 24 hours, scrape what will come off off and repeat. I was amazed at how well it worked. It did take about 4 cycles of that to get that tranny hump clean but required almost no elbow grease...and I had plenty of other things to do only my 40 each day so it was easy to do the spray...wait for a day and scrape off...then repeat thing.