I wouldn’t have said this if it were not for Jon’s post above.
I’m a firm believer in Barrs Leaks. Every engine has many places that it can loose coolant and to let coolant get into places it shouldn’t be. Stop leak products are put in new vehicles even including new Cadillacs. Barrs Leaks is also an excellent lubricant for water pumps.
There’s an 8V92 running around right now out there that one of us was about to spend a little more than ten grand on due to some seepage around the cylinder liners until I had him restrained while I dosed it up with a little Barrs Leaks and now it’s running problem free and he’s still got his ten grand.
And just for the record, I’ve never used, or advocated the use of Motor Honey!