NüDEF Diesel Exhaust Fluid Anti-Crystal Treatment - Treats 25 Gallons - DEF Additive & Stabilizer

I’ve had diesel equipment for almost 30 years and the new truck has all the pollution crap on it. This year we were having a really cold winter and I was getting alarms about emissions problems. I read it could be due to the DEF freezing. I believed that was my issue so I purchased this product. I can say I have not had a single issue after I have added the product to the def. And for the record we have had several single digit days. It sucks we have to buy another product to keep our trucks running but this product seems to do the job! I’ll use next winter to avoid any problems.

If you drive a diesel that requires DEF you need this product now! It will save you hundreds to thousands of $$ because it prevents urea nidus crystals from forming. Once you have urea crystallization in your DEF tank it will always continue to be a problem. NuDEF breaks down the urea crystals that form. This reduces the use of DEF your vehicle is forced to cycle through by the sensors that monitor urea crystal formation. It saves you money on DEF and fuel. And it protects your vehicle.

Before, I was getting an error warning saying the DEF quality was insufficient. No restarts after 250 miles. So I purchased a code scanner and reset the code. Error came on again after 100 miles or so.. I tried a local repair shop and they said “dealer only repair” wouldn’t touch it. Here’s the Great News! I purchased this product and have had No problems since. This bottle has saved me from expensive repair bills. Thanks!

geeat

Still using no noticeable change right away

I've been frustrated with my truck's DEF system for some time now...It seems that DEF fluid is wildly unstable (something they really don't tell you when buying a truck) and as a result, I've experienced my share of DEF system failures. Even when adding DEF fluid as recommended, the volatility of DEF fluid creates a seemingly perfect environment for DEF systems to fail when driving a diesel-powered truck like mine. A friend suggested I try using NuDEF...I was skeptical but figured I had nothing to lose. The dreaded DEF system light had returned again and before making yet another trip to my local dealership to once again be charged a fortune for a repair, I tried it. Wow! After mixing in NuDEF with my DEF fluid and driving for a short period of time, my DEF system light went off and my truck seemed to be a bit...happier! It's now been a few weeks and I have yet to see the DEF system light return and my truck has been performing perfectly. Thanks, NuDEF...You DEFinitely (see what I did there) have a customer for life!

I’m using this for the last 3 months. I assume it is working because well, how do you know? Shipping was fast and price was the best I could find

Was getting the P207F code. Sucked the all old DEF out of the truck best I could and refilled with blue def platinum along with a dose of nudef. Took about 50 miles but cleared up the code.

Fonctionne très bien

Garbage it’ll down your DEF system and we all know that it takes 10 hours at $250 a hour just to figure out why it did coated sensors with something kind of crap seller just sent me in circles so here’s your review I had to give one star to post it but should be -100 stars take a chance I did for 4500$ thanks