PB vs. Liquid Wrench? Vs. Hot Wrench?
PB Blaster many times better than Liquid Wrench - don’t know about Hot Wrench.......
Soak the seized cylinders in an old engine that’s been sitting for 20 years in PB Blaster for 1 - 3 days, and they’ll usually come free. If that doesn’t work, go to the acetone/auto tranny fluid. If that doesn’t get it, nothing will. You’ll have to break the pistons out........