Would Sea Foam work for cleaning a weak fuel injector in a 2020 6.7 Cummins? [SOLVED]

Thanks for the question!

Sea Foam will help clean up the injector. A lot of guys clean injectors by using Sea Foam to prime diesel fuel. Here’s a video on how to do it.

Otherwise, a high concentration of Sea Foam would also work. A 16 oz can in 2-3 gallons of fuel is a good cleaning concentration. Wait until your tank is at 2-3 gallons, add the Sea Foam, and then drive until almost empty before refueling. You can of course increase the amount of fuel and Sea Foam if you don’t want to run the tank that low. The basic idea is to create a high cleaning concentration of Sea Foam and run it until almost empty.