Stephen Newell
Well-known Member
Saw a display of it at my local lumber company this afternoon. What the devil is it?
- Thread starter Stephen Newell
- Start date
Hobo,NC
Well-known Member
- Location
- Sanford, NC
They have it here also its right beside the engine piston springs section...
https://www.youtube.com/watch?v=oFX_Xq9WHTI&vl=en
Who would have thought 75 years ago that we would be putting nitrogen fertilizer and water in diesel engines? Ask any semi driver what happens after about 250,000 miles to these trucks today.
Put a chip in and remove the EGR valve and see how much better everything runs. A friend is in on a vehicle that compresses more air than it uses. What would that do to the industry?
Put a chip in and remove the EGR valve and see how much better everything runs. A friend is in on a vehicle that compresses more air than it uses. What would that do to the industry?
Stephen Newell
Well-known Member
Well, my newest tractor is a 1987. Don't have any other diesel vehicles.
DEF is basically urea, it is injected into the exhaust before a special catalytic converter and converts the nitrous oxides into nitrogen and water. EGR was used before DEF, and still is to some degree to reduce NOx emissions. I believe it is better than EGR because it does not cut efficiency.
Stephen Newell
Well-known Member
Thanks for the info. I had never heard of it and curious as to what it was. Looks like another reason not to buy a 21st century vehicle.
Steve@Advance
Well-known Member
David, where do you buy your DEF?
I see it's cheaper to buy at the truck stop pump.
Is there any difference or risk?
I see it's cheaper to buy at the truck stop pump.
Is there any difference or risk?
Do you know anyone who accidentally put DEF in the fuel tank? If this happens do not turn the key on, not one time. Disconnect batteries or disable fuel pump and call a tow truck and take it to your favorite repair facility. Flushing the fuel tank is better than replacing all the parts in the fuel system. It will cost thousands of dollars for this error, closer to $10k or more if you are paying a shop to fix.
DEF is abrasive and highly corrosive it will ruin lift pumps, injectors, fuel coolers, injector pumps etc. It can pass through filters and can cling inside fuel lines, rails and release itself later. A complete fuel system replacement is what's needed when you make this mistake.
DEF is abrasive and highly corrosive it will ruin lift pumps, injectors, fuel coolers, injector pumps etc. It can pass through filters and can cling inside fuel lines, rails and release itself later. A complete fuel system replacement is what's needed when you make this mistake.
RedMF40
Well-known Member
It is for guys who bought gas pickups but wish they had a diesel.
Guaranteed black smoke when you get on the gas. Special "rattle enhancers" give that diesel sound. Many use it in conjunction with "turbo in a bottle."
Yes, I've seen it too. Figured it had to do with cleaning up the exhaust.
Bruce from Can.
Well-known Member
- Location
- Woodville, Ontario, Canada
I need DEF in a farm tractor. This discussion came up amongst a few of us at a auction sale the other day. A few fellas that are not much more then hanging on, claimed that they would never buy a tractor that needed that darn stuff. And how it?s nothing but trouble, and the new tractors won?t be worth anything in 20 years. Then we watched a MF 1135 sell for $3,300.00 and a JD 8450 sell for 12 Grand.
My self, I hope that in Twenty years, that I won?t have to be still going out trying to make my living riding a tractor, I?d be nearly 80. And I really have no interest in keeping my main tractors past ten years. I still like my 50 year old tractors, but I don?t want to have to ride them all day every day.
My self, I hope that in Twenty years, that I won?t have to be still going out trying to make my living riding a tractor, I?d be nearly 80. And I really have no interest in keeping my main tractors past ten years. I still like my 50 year old tractors, but I don?t want to have to ride them all day every day.
MarkB_MI
Well-known Member
- Location
- Motown USA
Remember back in the seventies when catalytic converters were introduced, requiring unleaded gas? That was a much bigger deal than DEF, since every refinery and gas station in the country had to add unleaded gas. Folks had a fit about how bad unleaded gas was. Now, 40 years later nobody thinks twice about unleaded gas and catalytic converters; it's just assumed every car has a cat and every gas pump dispenses unleaded gas. In a few more years, the same will be true of diesel catalytic converters, particulate filters and DEF.
MarkB_MI
Well-known Member
- Location
- Motown USA
> Do you know anyone who accidentally put DEF in the fuel tank?
Do you? I have a hard time believing somebody is going to pump DEF into their fuel tank. Much more likely they will fill the tank with gasoline, and we know how that turns out. You're just fear-mongering.
> It can pass through filters and can cling inside fuel lines, rails and release itself later.
I also have a hard time believing DEF (which is mostly water) is going to get past a typical diesel water separator/fuel filter. While gasoline will easily pass through to do its damage.
Do you? I have a hard time believing somebody is going to pump DEF into their fuel tank. Much more likely they will fill the tank with gasoline, and we know how that turns out. You're just fear-mongering.
> It can pass through filters and can cling inside fuel lines, rails and release itself later.
I also have a hard time believing DEF (which is mostly water) is going to get past a typical diesel water separator/fuel filter. While gasoline will easily pass through to do its damage.
showcrop
Well-known Member
I had to sit through mandatory training on this when our fire dept got a new truck. I think that the best way to look at it is that your exhaust is all being run through a filter. Under good running conditions very little soot is produced and the filter is self cleaning If it is not run well, the filter has to be cleaned periodically. The DEF is injected into the exhaust to perform that cleaning as you drive. If the truck has a high enough proportion of high rpm under load driving time, it doesn't need to do anything more. If not, it has to do a "parked regen" which puts it out of service. The dump truck that I drive is usually good, but once during a paving job it had been idling too much and put itself out of service. We rarely allow the fire tuck to idle. It is either put on high idle, or in cold weather, recirculating.
MarkB_MI
Well-known Member
- Location
- Motown USA
> The dump truck that I drive is usually good, but once during a paving job it had been idling too much and put itself out of service.
A friend of mine who is a powertrain engineer for a major automaker told me their number one cause of diesel warranty claims is excessive idling.
A friend of mine who is a powertrain engineer for a major automaker told me their number one cause of diesel warranty claims is excessive idling.
rusty6
Well-known Member
- Location
- East central Sask.
If you don't own a vehicle or machine designed to use DEF then you don't need to even think about it. DEF in GM diesel powered pickups has been around for a few years already. Most of the bigger progressive farms are using machinery requiring DEF. They don't just buy a jug or two. Its big "totes" holding many gallons. Notice you won't see any black smoke from their exhaust. They claim the exhaust has no smell either.
Tx Jim
Well-known Member
- Location
- Coyote Flats, Texas
Last yr I was told my local JD dealer traded for a nearly new Mahindra cab tractor around 100 HP that previous owner's employee put DEF in fuel tank. Tractor required a new fuel system. JD dealer sold tractor to my neighbor & after operating tractor a few hours engine stopped running due to fuel related problems. Neighbor made JD dealer take tractor back & got new JD tractor.
Pour some DEF on the ground, let it dry and you will see what is left. Nobody is fear mongering and accidents do happen. OEM's and aftermarket sell kits specifically for DEF contamination and they are very expensive. The last truck I looked at was a Ford and they accidentally pumped DEF into the tank, it cost around 8k to repair (not dealer price), lots of money in parts and labor. It will pass through the filters, the water separator does not stop flow when full, it will allow it to pass on through when full.
You don't have to believe me but go to a diesel repair shop, equipment dealer or truck dealer and ask them about DEF/fuel contamination. Search online about it, DEF will destroy the fuel system and even small amounts can be catastrophic
wilson ind
Well-known Member
What is fakeliner??
Paul from MN
Member
I am not to worried about it (Pouring DEF in my fuel tank). I have never put window washing fluid or antifreeze in my fuel tank. Would imagine that they might cause problems too.
morepower02
Member
My 2015 F350 uses it. No smell or eye burning fumes like my previous pickups.
morepower02
Member
Also the def fill opening is so small you would have to be a complete moron to put diesel in it.
rlp in Co.
Well-known Member
Is the diesel exhaust fluid expensive? How much fluid does the engine use per hour? Can you substitute cow urine?
rlp in Co.
Well-known Member
Interesting, I know it sounded like a dumb question, but now I know.
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