So I decided to try this Superzilla product to see if it worked as well as it was being promoted. I have some parts that have some surface rust on them and various other pieces of hardware that could use some rust removal/protection. The first test was the door leading from the house to the garage. The latch was sticky and it did not respond well to other spray lubricants, so I gave it a spritz of Superzilla. The latch now works as advertised and the door hinges operate smoothly. I am impressed so far.
Why I am posting this is because I was wondering if others have tried this product and how you feel about it. The other application that I feel would be perfect for some of us would be to spray this into the cylinders of a froze up engine.

 

Charlie, I bought some a year or so ago to try to remove some frozen bolts. Did nothing for them. I've got the bottle some where in my "Yea Right" pile. I'm glad it seemed to work for you though.

 

I bought one on Amazon several years ago after someone on here recommended it. This is before you could buy it in the store. I think it was Bob, Mixer Man, that knew about it. I haven't used it for rusty nut removal. I rely on PB Blaster for that. I do use it for lubricating. So on my shelf in the garage I have Superzilla, PB Blaster and WD 40. One word of caution. Because it is plant based the outside of my can is sticky from product dribbling on the can.

 

OK...so I have had this product for 6 months now, and while I don't use it everyday, I have used it for various applications. I find that it works well on door locks and hinges but I have not used it for freeing up rusty bolts. The wife likes it for removing sharpie writing off her plastic storage boxes...works like a charm.
Now comes the good part...I recently assembled the grille for my 40 coupe and I used 3M ultra weatherstrip adhesive to bond the welting to the grille vents prior to bolting up to the grille. In the process some of the adhesive squished out and dried in the seam between the painted vent and the stainless welting bead. I have a can of 3M weatherstrip solvent here someplace but I can't find it...sooo time for the Superzilla! I squirted some on the seam with the excess adhesive showing. Let it sit for a couple hours and went back to see how it worked. The adhesive had turned from hard rubber to spongy goo. It wiped off easily with a shop towel and best of all did not damage the paint. The 3M solvent works well but it liquifies the adhesive which can be messy. Just thought I would update my findings to date....