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« on: January 17, 2019, 04:50:54 PM » |
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Put DEF into the diesel tank. We were told it not only crystallizes but is very corrosive and if not removed quickly enough it results in the WHOLE fuel system having to be replaced. That seems to be the scenario for this bus.  The bus is only 2 years old. |
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hubcapsc
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Posts: 16799
upstate
South Carolina
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« Reply #1 on: January 17, 2019, 05:41:24 PM » |
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I had to look that up. I thought Diesel Exhaust Fluid was like Timken muffler bearings...
-Mike
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NewValker
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Posts: 1390
VRCC# 36356
Oxford, MA
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« Reply #2 on: January 17, 2019, 05:57:57 PM » |
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DEF...another genius idea brought to you by government. Last generation of diesels had a regeneration feature to cut emissions. We just dropped 8k on each of our two 2008 trucks to replace the entire system that became blocked and the trucks wouldn’t go over 20 mph.  Craig |
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Turns out not what or where, but who you ride with really matters  |
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scooperhsd
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« Reply #3 on: January 17, 2019, 06:04:51 PM » |
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I have two diesel VWs - one a 2000 New Beetle, the other a 2015 Golf. The Golf also needs DEF - it gives you notice about "1500 miles" before it runs out. No DEF - car won't run. And before you ask - my 2015 has had it's emissions repair work completed.
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DIGGER
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« Reply #4 on: January 17, 2019, 08:26:03 PM » |
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At my car mechanics shop recently I saw what looked like a brand new Ford Dually diesel with the entire cab and bed sitting off to the side.....just the drive train there . I asked what the deal wS and he said someone put Def in the fuel tank. Destroyed the entire fuel system. Said it was a $15,000 fix.
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sandy
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« Reply #5 on: January 17, 2019, 08:31:44 PM » |
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DEF is ammonia and distilled water. It's function is to clean the catalytic converter. Without it. deposits clog the cat and the exhaust is plugged up.
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NewValker
Member
Posts: 1390
VRCC# 36356
Oxford, MA
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« Reply #6 on: January 18, 2019, 02:23:09 AM » |
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DEF is ammonia and distilled water. It's function is to clean the catalytic converter. Without it. deposits clog the cat and the exhaust is plugged up.
Sandy, that is exactly what the regeneration feature was supposed to do for the cat. When it didn’t work, the driver didn’t know until the truck stopped running and it was 8k to repair. Craig |
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Turns out not what or where, but who you ride with really matters |
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3W-lonerider
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« Reply #7 on: January 18, 2019, 04:00:56 AM » |
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We have customers that continue to put diesel in the def tank. Turns into a pink cottage cheese.
New tank and def head for a jlg telehander is 2 grand.
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baldo
Member
Posts: 6961
Youbetcha
Cape Cod, MA
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« Reply #8 on: January 18, 2019, 04:18:32 AM » |
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We have new GPU's for our aircraft. Same thing, someone mixed it up. Luckily it was discovered before any harm was done. Looks like some sort of education campaign would have been very helpful. I'd never heard of it until I saw these power units.  |
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« Last Edit: January 18, 2019, 04:20:37 AM by baldo »
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Skinhead
Member
Posts: 8742
J. A. B. O. A.
Troy, MI
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« Reply #9 on: January 18, 2019, 04:59:53 AM » |
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They need to make the nozzles for diesel and DEF different to the extend that it would be terribly difficult if not impossible to mix them up, let alone ad the wrong fluid to the wrong tank. Right now both are round holes, and some are located right next to each other. With the generally clueless population we have in the world, this will continue to be an issue. Also the stupid info symbols manufacturers use instead of words, this will continue to be an issue. Another crisis averted by our government looking out for us. Had they not intervened, I'm sure the world would be covered in diesel soot by 2030.
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 Troy, MI |
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indybobm
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« Reply #10 on: January 18, 2019, 05:08:42 AM » |
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SO, what vehicles are supposed to use def? Never mind, looked it up.  |
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« Last Edit: January 18, 2019, 05:22:40 AM by indybobm »
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So many roads, so little time
VRCC # 5258
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3W-lonerider
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« Reply #11 on: January 18, 2019, 05:20:00 AM » |
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SO, what vehicles are supposed to use def?
in the industrial side of it. all diesels over 94 horse need to have def. personally i would'nt give you 2 cents for any vehicle that has to have def fluid. |
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« Reply #12 on: January 18, 2019, 06:12:25 AM » |
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They need to make the nozzles for diesel and DEF different to the extend that it would be terribly difficult if not impossible to mix them up, let alone ad the wrong fluid to the wrong tank. Right now both are round holes, and some are located right next to each other. With the generally clueless population we have in the world, this will continue to be an issue. Also the stupid info symbols manufacturers use instead of words, this will continue to be an issue. Another crisis averted by our government looking out for us. Had they not intervened, I'm sure the world would be covered in diesel soot by 2030.
We have onsite tanks for diesel and DEF. The DEF fuel line has a smaller diameter than the diesel so fits nicely into the diesel opening.  What is annoying is that the bus in question has diesel fill on one side and DEF on the other. However the buses that take DEF DO NOT have DEF marked by the filler cap. Something I suggested to the school as soon as the problem was mentioned. |
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Rams
Member
Posts: 16681
So many colors to choose from yet so few stand out
Covington, TN
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« Reply #13 on: January 18, 2019, 06:23:57 AM » |
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Put DEF into the diesel tank. We were told it not only crystallizes but is very corrosive and if not removed quickly enough it results in the WHOLE fuel system having to be replaced. That seems to be the scenario for this bus. The bus is only 2 years old. Was this an obvious malicious act or a simple lack of understanding the bus maintenance requirements? A malicious act deserves one response, the other makes me wonder who in the heck is in charge of driver training and ensuring maintenance on the buses. What part of bus maintenance is a driver responsible for? If it's a lack of training then blame the supervisor and take appropriate action. Rams  |
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VRCC# 29981
Learning the majority of life's lessons the hard way.
Every trip is an adventure, enjoy it while it lasts.
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scooperhsd
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« Reply #14 on: January 18, 2019, 06:55:51 AM » |
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Put DEF into the diesel tank. We were told it not only crystallizes but is very corrosive and if not removed quickly enough it results in the WHOLE fuel system having to be replaced. That seems to be the scenario for this bus. The bus is only 2 years old. Was this an obvious malicious act or a simple lack of understanding the bus maintenance requirements? A malicious act deserves one response, the other makes me wonder who in the heck is in charge of driver training and ensuring maintenance on the buses. What part of bus maintenance is a driver responsible for? If it's a lack of training then blame the supervisor and take appropriate action. Rams I would guess probably the second. If this is the second time the same driver has done this - then the problem is clearly with them. |
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« Reply #15 on: January 18, 2019, 09:00:20 AM » |
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Put DEF into the diesel tank. We were told it not only crystallizes but is very corrosive and if not removed quickly enough it results in the WHOLE fuel system having to be replaced. That seems to be the scenario for this bus. The bus is only 2 years old. Was this an obvious malicious act or a simple lack of understanding the bus maintenance requirements? A malicious act deserves one response, the other makes me wonder who in the heck is in charge of driver training and ensuring maintenance on the buses. What part of bus maintenance is a driver responsible for? If it's a lack of training then blame the supervisor and take appropriate action. Rams I think a little bit of everything apart from malicious. |
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