1 Small Diesel Fueling Mistake Could Cost You Thousands (Diesel Exhaust Fluid Contamination) 🔧

This one simple mistake could send your truck to the scrapyard or drain your banking account. Diesel exhaust fluid (DEF) is corrosive and harmful to several metals. This will cause severe damage to a diesel truck fuel system and turn your diesel fuel into a wrecking ball through your engine! It is best to not start the engine and drain the fuel tank immediately. If you were not able to do that, early symptoms of DEF in your fuel include hard starting, rough idle and smoking exhaust, and a DEF-contaminated engine may not start at all. Yikes! The recommended repair is to replace the entire fuel system, from the tank to injectors. As you can probably tell, this is not a small job. There have been reports of Ford dealerships quoting between $12,000 and $20,000 to replace a DEF contaminated fuel system. For an even older truck, the cost of a DEF repair could easily be more than the value of the vehicle.

*Let's hear your DEF contamination stories in the comments below.*

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Chapters
0:00 Diesel Exhaust Fluid Contamination
1:20 What Does DEF Do To Fuel?
4:10 Don't Turn Key On
4:52 Fuel Filter

#def #dieselcontamination #fuelcontamination #thoroughbreddiesel #dieselpower #diesellife

[tylerenglish]

I too put it in the wrong hole on occasion. It's best just to play dumb!

[turcksmachine]

DEF, saving the environment, one plastic container at a time-

[ralfrisberg]

Thank god i have an old diesel so i don't have to have that glorified piss in it 😎

[YYCRCFabricationz]

I have an '03 F350 & never even heard of DEF until this video. Did some online reading as I was curious & just want to pass on a thanks for educating me about this. Great video!

[indyjones]

I refuse to purchase a new diesel truck because of the ‘pigpiss ‘ DEF’. The input port should be on the other side of the truck.

[Arv]

Thank you for your kind words and when i get a diesel I'll check back.

[daves]

Thanks for the straight-up what NOT TO DO vid. Didn’t even think about what would happen when I kick the key to on. Imagine that flatbed truck guy might do that just to make sure the steering wheel wasn’t locked during load/unload. Best to just disconnect the battery to make sure someone else doesn’t mess it up when you’re not looking!! Thanks again Wade!!

[CousinPete]

I literally just did this last week. Got Diesel the day before but he DEF pumps were occupied. The next day after work I stop and gas station on the way home. Since I wasn't getting Diesel and only putting DEF in I left my truck running. While I was putting my credit in I was also on the phone with BASS PRO where they lied to me about work they did on my boat. I was upset and distracted. Ended up putting two and half gallons of DEF into running truck before I realized what I was doing. Shortly later it errored out with "water in fuel". Had truck towed to Chevy dealership. (only 4500 miles on it) I about crapped my pants when quote came back at $16, 000. That does not include engine. $5500 parts and 64 hours labor. Here is where my luck turned. Turns out I wasn't cheap when I bought my Comprehensive Policy and ended up being covered by my policy.

[ldbrush]

"Just there for the free booze" ... best Wade quote of the century. Great information, so glad I have a '02 Cummins, except when we start talking VP44s.

[ForPropertyInvestors]

He right about every word. I did this precicly. 1HZ Toyota Coaster Motorhome 2000, put AdBlue in ( Diesel Exhuast Fuel) at the service station, drove vehcle 14 kilomters and it stopped. Long nightmare story short it wrecked the injector pump and the engine has be rebiult as it's got serious blowby now. See my channel for heap videos on trying to trouble shoot and fix it. Absolute nightmare stuf should be warning all over the service stations.

[brianwalk]

Thanks for sharing this. I think most of us know that its not a good mix, but I doubt everyone knew how catastrophic this could be!!!

[adambatchelder]

I think I'm safe I don't own any Def, nor will I ever own a truck that needs it.

[GosselinFarmsEdGosselin]

Mixing diesel and DEF makes a very confused concoction....
The diesel naturally wants to protect and lubricate everything.
The DEF, being derived from fertilizer (urea) naturally wants to rust and curode most things it comes in contact with....
We use diesel on all our fertilizer equipment after a good steam cleaning at the end of the season... Takes about 4 gallons to coat everything that fertlizer comes in contact with.
Still amazes me that some one though urea would work in an exhaust system.... Curodes bridges, overpasses, even the trucks it's used on... (Hence, why exhaust systems for DEF are all stainless)
But hey, what would I know about what fertilizer will do to metal??
I've only used it for 50 years....

[rickellis]

Great video! BUT, too late for me, as a couple of weeks ago, I added a very small amount of DEF to my fuel tank on my 2018 F250 6.7TD. I made this lame-brain mistake at a fuel station that sells DEF at the pumps. Just not paying attention, I inserted the nozzle into my diesel fuel inlet—which I had just finished filling completely full. I had pumped in maybe a quart of DEF when I realized my mistake and immediately stopped (some of it had splashed out due to the tank being full). I then proceeded to fill my DEF tank. Not knowing how serious this could be, I started my truck and drove home—about 10 miles. By the time I arrived home, my “water in fuel” warning was on. I immediately drained the fuel/water separator under the truck—did that a couple of times. Then, I replaced the water separator filter, and the engine mounted filter (had those two items in my shop). For the next few days, I continued to drain fuel from underneath my truck, until I got down to about a 1/2 tank of fuel. Then, I refilled my truck. I’ve driven many miles in the past couple of weeks, without any issues. Truck starts fast, runs smooth, no further WIF alerts, nothing. So here is my concern—do I have a ticking timebomb that could go off at an point in time? Is there anything I should be doing at this point? My local Ford dealer’s service manager said they see several trucks every year that have this same thing happen, and his recommendation was to continue to drive it, but to know that trouble could still be in my future. One last thing, we use our truck to tow our fifth wheel, and we got several trips on the calendar for this spring, beginning in March. One is about 800 miles away, in April. So, what advice would you give me around “next steps”?? Also, what about the traveling with the fifth wheel? I just saw your YouTube site and subscribed to it—hopefully I’ll still have this truck for a good long while—we love it! Thanks very much!

[DeekJohnson]

Haha. Just bought first diesel. When I get to a pump now I talk to myself as I read and triple check pump colors and labels to myself about what I am about to do, then look at my truck fuel caps and intentionally open the correct cap for what I am about to do, then pray to God about what I am about to do. 😂

[LM-sclu]

A kid put gasoline put in my Duramax a couple years back at a local full-service station. Luckily for them, I shut it down the second my engine, "coughed", so there was no damage to the system. But it did cost the station $150.00 for towing, $580.00 to drain and clean the system, plus a new filter, another 36 gallons of fuel, and I talked the owner into two additional fill-ups for my inconvenience. The kid got fired for being an idiot. P.S. My Duramax was bought brand new in 2003, and has 93, 000 miles on it. Living in N.Y., rust is a problem, so I had it painted, and restored, "body off" a couple of years back. Replaced some of the running gear, all of the lines, the exhaust, etc. I'm 68, so I plan on driving it into my grave!! None of that DEF crap for me.

[addictedtone]

I hate DEF.. We deal with it daily, I spilled some on my pants leg by accident and it burned like acid.
I agree it's corrosive as hell and bad for engines.

[marksleeper]

thanks for your post I used your cat fuel adapter to run cat filters on my duramax, that was the best improvement to the truck, wow what a difference in performance

[jimbobxcityguy]

I almost threw up when I dumped 3 gallons into my fuel tank two weeks ago. I had to start it for just about 5 seconds so I could put it in neutral and start it down hill to roll in front of my work shop. Well I dropped the full tank of fuel ( ouch $120 worth) and drained it. Washed it out with garden hose real good. The pickup pump and lines and fuel filter on the tank. Installed it and added 3 gal of power service and a gallon of Power service 911. Mixed with 5 gal of fresh fuel. Drove it for a while then added 5 more gallons. Drove it 230 miles then added a full tank. Kept adding Power Service 1 gal per full fuel tank. Drove it another 300 miles then changed both fuel filters. Cut them open and let them dry for a few days. Not one spec of crystal any where on any of either filter. I guess I lucked out.
On a side note I did it twice before on my 2011 6.7. That was at 45k miles..Only a qt or so. Just drained the first filter every few miles then changed the filters out while adding lot's of power service for a while. Traded it in at 165k and still running smooth. No issues there.

On a side note. Why didn't I just call Ford to come and tow it while it was just in the tank and I hadn't started it at all? Had too many important things to be done the next day and 1 week after and another 1 week after and another 1 week after. I went for it. At that point I didn't care what happed to the truck. Either it was going to run and do that all or frig it.

I now have a locking gas cap that should help.

[jimmungai]

Hey Wade this is Jim again with the old 91.56 row under the hood hey listen thanks for doing this video I work with a company that runs diesel equipment I am periodically I got to stop and put DEF in the tank DEF tank and yeah I never knew cause that much damage I just dead but thank you for that information your videos are always great job I like your demeanor you have a good day guy by