This any better than the usual stuff out there?
MD-Deal

 

Internets say Kroil works great.
I put it on a little on a frozen Alignment bolt and parking brake cam on the caliper, every few days for a few weeks. Didn't work on either. Neither did WD40.

Smells good though.

 

Supposed to be better than the typical Liquid Wrench, WD-40, etc. I did that same deal a few days ago, got my order within a few days.

 

PB Blaster + torch for those really stubborn bolts.

I was trying to remove the hub nut on an old DSM I was parting out. It was so stuck that I sheared off the head of a 1/2" craftsman breaker bar.

Sprayed it with PB, torched it for a few seconds, PB'd it again, came back the next morning and it came off easily. Bauce.

 

Kroil is good stuff, but I find that a 50/50 mix of kerosene and ATF works better than anything else, and you can mix up a large batch quite cheaply. It's what I use on boiler fittings and it works wonders.

 

Kroil is great stuff, but it's hella expensive. I switched back to Liquid Wrench after I ran out. Not quite as good, but about 1/3 the price.