These are the products known to have polyether amine as the active ingredient.
BG44 -???
Chevron Techron Concentrate
Chevron Techron Pro-Guard
Red Line SI1- SI2
Will PEA - polyether amine kills/damage engine? I guess not, if it is already added to existing fuel system for the past 20-30 years. Just like anything, too much of the good thing, it will turn bad, right?
Why Techron Pro-Guard, - use it every 1000 miles? Why not every tank? Was it because it is not free?
