DC101 DEF Anti-Crystal Cleaner & Protectant 1 Liter Bottle

One Bottle Treats 1,000 Liters (264 Gallons) of DEF

Keeping your DEF system clean isn’t optional — it’s the difference between staying on the road or sitting on the shoulder waiting on a repair bill.

Combustion Technologies DC101 is built to keep your DEF system running the way it should. This powerful treatment breaks down and removes crystal buildup inside the system while helping prevent new crystals from forming in the DEF tank. That means fewer problems, fewer warning lights, and a whole lot less downtime.

DC101 goes beyond basic cleaning. It works through the entire DEF system to clean and lubricate components, remove harmful sludge and bacteria, and keep everything flowing the way it’s supposed to. It also lowers the DEF freeze point by up to 17 degrees, helping keep things moving when cold weather tries to shut you down.

On top of that, DC101 reduces surface tension, improving DEF return flow back to the tank and helping the system operate smoothly and consistently.

If you’re tired of dealing with DEF system issues, DC101 helps keep things clean, flowing, and working the way they were meant to.