Hi Scotty,
1st of all thanks for all your videos! You've been a big help on several of my vehicles!
This question is about the video you did on Steel Seal. In looking for a place to purchase it, I've found several brands making similar claims.
Are there any other brands you would recommend equally?

use bars head gasket sealer, auto zones sell it and it's pretty much the same stuff and cost less

The sealer appears to have worked. No more signs of a leak. I followed the instructions to the letter. After a rough start and a lot of white smoke, it smoothed out and ran fine. After letting it cool down, now it won't start!
Any suggestions?