[30 Closed Cab PU]

Recently I saw a post that someone had gotten flakes using Rust911. I've not tried Rust911, but have used thermocure. I did not see any flakes, but did see a very small amount of grit.


Recommended is to do a backflush using an adapter and garden hose on the radiator, which would require removal of at least the lower hose/pipe.


Additionally it is a good idea to run an upper hose coolant filter. Unless the radiator and block are squeaky clean, additional rust/scale can loosen with the danger of causing issues in your radiator. After your system runs clean for a while, then remove the upper hose coolantfilter if desired.