Stopped DPF regens

“2014 Cummins ISX, done just over 785,000 miles. Was doing DPF regens all the time. Soot levels always showed high. Started using FTC Decarbonizer, and now after about a gallon of it, the regens have all but stopped, and the soot levels have dropped dramatically. Now lower than I can remember.  Works great with DPF regens.“

Josh H, Merrillville, IN