Difference was like Night & Day!

“The Engine Blowby Pack worked as it was supposed to. The Cummins ISL 425 in our motorhome had developed bad blowby, and so much oil spray coming from the blowby tube it was covering the tow car with oil. The dealer checked and told us that it showed 50% idling hours during it’s life so far. We flushed the oil the way you said with the Flushing Oil Concentrate, and started using the FTC Decarbonizer in the diesel. It started to get better quickly, and now we’ve run 700 gallons of diesel through it and the blowby is completely gone! The difference was like night and day! An excellent result. We were skeptical to begin with, having been told that the only way to fix the problem was to overhaul the engine. We couldn’t be happier with the results. We’ll keep using the products to keep it running so good. Many thanks.”

Patrick T, NE