The rocker panels on my pickup are starting to blister on the bottom. How effective do you think it would be to remove the small body plugs on the back side and pour/squirt Eastwood Rust Encapsulator inside and rock the truck back and forth???

Scott B. "I'm a self-made man... I started with nothing, and I still have most of it!" 68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph 69 340 GTS stock 14.18@ 95.60 mph 01 5.9L Ram 1500 Quad Cab 4x4 01 3.5L 300M 16.23@ 86.97 mph