I agree... When we're filling up our DEF tanks you're getting a transmission rebuild.

 

Issue one you went to a stealer, and they will tell you you have to use only Ford, BS. DEF is DEF just like diesels diesel, 750K miles in a class 8 using what ever truck stop fit my need, one injector, one turbo and ran as good as they day I bought it. My current 15 F350 has 140K using whats available when I need it and it runs like it should.

 

Out of the 95 licensed producers of DEF, only 9 are not in North America.

Interesting to see that Ford makes their own as well as WalMart, John Deere as well as other common names you'd may not expect to see like Cummins Filtration, Navistar, PACCAR, Prestone, and Valvoline.

https://dieselexhaust.api.org/Direct...s?accountId=-1

Take the list out to 100 to see it all on one page.

 

Def is def. just dont let it sit too long or get contaminated. No issues with walmart super tech or home depots bluesky def.

 

This is why I fill at the pump. I so seldom need to fill when not towing that it could go bad sitting on the shelf. It would have froze for sure a few times since my last fill.

 

The military fleet needs this BS!!!! Wonder why we aren’t using emissions in the heat of the battle? Until the whole world cleans it up, what we’re doing is making little to no difference

 

^^^^^^ that right there... BOOM! ^^^^^^

We know China, Russia, India, Mexico and probably others, DO NOT have an EPA pushing their draconian laws down their citizens' throats... but I digress...

 

But But World leader, you know, the thing!

 

I'm not understanding the connection between regen codes and DEF.....much less which kind of DEF. Did the tech explain this to you? Regen is a separate process from DEF injection to reduce NOx.

 

The dealer or most likely the service advisor needs to learn about the system himself.

As a side note though, some of the codes would have you do a regen to see if it will clear as part of the dianostics.

Still does not mean you have to only buy ford def.

As long as the concentration is at or very close to 33% you are good, regardless of brand.

 

Thanks for the responses. It's all confusing to me. I was shown documentation by two different Ford dealer's service advisors who said that using Motorcraft DEF would prevent having to do a manual regeneration. I thought that a manual regeneration was required because the normal regeneration either wasn't completed or that it was not sufficient. That is the only time I've ever had to have that done. I have used AutoZone, O'Reilly, and Fram DEF from time to time when on the road and a Ford place was inconvenient, but I've always wondered if I was going to get another problem. I guess I don't understand the system. I thought when the filter got contaminated up to a point, the system injected the DEF into it to burn it out.

 

DEF is injected all the time to reduce emissions. REGEN is what happens when the pressure sensors read that the particulate filter is reaching full, and diesel is injected on the exhaust stroke at the engine so raw fuel makes it's way to the hot DPF where it is burned at high temperature so reduce the soot load. Now you can see that you burn more fuel to reduce the soot that burned fuel has left behind that used to exit the tailpipe, which, BTW is still exiting the tailpipe but makes tree huggers feel good because you can't see it.... See?

And again.... Motorcraft DEF will not have an effect on any regen. DEF is DEF. Run the cheapest you can obtain.

 

Dealers make more than half their profits selling parts and servicing vehicles. They are not going to suggest buying DEF from anyone else.

When I have seen shops that have DEF tanks they have been very large ones that occupy an entire pallet and as such they are stored outside in the sun. Sun is one thing that can serously degrade DEF.

Regens have nothing to do with DEF but are designed to clean the particulate filter. Lots of short trips will result in additional fouling of the DPF and so not advised.

 

DEF is used to reduce NOx that is produced in the combustion chamber at high combustion temps. So basically any time your turbo is really working, you will see high EGTs and that means NOx is being produced and that DEF is being injected into the exhaust.

Regens deal with cleaning the Diesel Particulate Filter(DPF) The DPF is part of that large exhaust under your truck. Soot is produced when your engine is running on the rich side. ie, you see folks turn up their injectors and blow black smoke. The DPF captures the Soot and holds it until it starts to plug up. At which time the system will do an Active Regen. A active regen means your engine injectors will inject some extra fuel into the exhaust stroke of the piston and the fuel is carried into the DPF where it burns and helps to burn off the collected soot. Normal driving this will take 15-20 miles to complete a fuel Active Regen. A Manual regeneration means this was started by a Manual Command while the truck was stationary. During Active regens you will Often see Exhaust Temps at EGT3 reach 1000 to 1200°

Passive Regens means your truck is producing enough heat with out the extra fuel being injected to burn off the soot that has been collected. This process will begin anytime your EGTs entering the DPF are above 572°. For comparison, my truck at idle is around 300° EGT, Driving 70 mph on the interstate my EGTs are around 500°. Neither of those temps will cause a passive regen. But hook up my horse trailer ( 13,000 lbs) and tow on the freeway at 70 mph and my EGTs jump to 750-800° which is high enough to do an active regen,

Consider that if it takes 20-30 miles of 1000-1200° heat to complete an Active regen, You probably need to hold passive regen temps for much longer to complete a full regen. Does it matter if you complete a full Regen. Since Passive Regens work and don't work as exhaust temps get hot enough to burn off soot.. When I'm towing a lot, I see my average distance between regens jump to 500 miles. When I'm not towing, my average drops to 300-325 miles between. So for me, having a passive regen do a little here and a little there, extends out how far I can go between Active Regens. Another point of interest is that computer in the truck seem to programmed to do a Active Regen every 500 miles regardless of the soot load.

 

I was in China 5 years ago and I could not see the other side of the street from my hotel window. That is the kind of air that results from no government regulations in force. $90 billion is the cost for treating asthma in the USA and that does not include time lost from work or school or the cost of the medications that asthma sufferers need to take each and every day.

Nothing draconian about regulating pollution. Evidently clean air and clean drinking water and unadultrated food is not important to you. It is important to most people of even average intelligence and morality, neither of which is common in the USA.