As I suck it up and have the bad injector replaced, the mechanic recommended a product called Berryman's, he said it was "about the most caustic stuff you can buy without some kind of permit" and said I should use it for a few tanks worth of gas to clean up the other 7 injectors.

I told him I regularly Seafom and he responded "Ya some people love that stuff but it isn't NEARLY as potent as some of the other options out there, and with 180k miles on these injectors, it would be good to really ream them out".

I was just wondering if anyone else had any experience with this Berryman's stuff, good or bad. I don't want to put something so harsh in my car that it will eat out seals or something and make things WORSE.

 

We use it to take markings off of pawn shop stuff that comes in. Seafoam won't remove it.

 

Seafoam works good only when used through the intake and Berrymans is indeed better to use through the tank.