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Old 04-15-2012, 09:02 PM   #1
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Maxxforce "Regen"

Has anyone had a Maxxforce10 long enough to have performed a "Regen" cycle? What was It like? How much fuel did you use? How bad is the fire danger?
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Old 04-15-2012, 09:43 PM   #2
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The Maxxforce 10 should automatically do a regen while your driving, especially in a Motorhome where almost all of your driving is done on highways. Most likely at least once every 500 miles or so. You may not even realize that it is doing one.

There are some that have to do a parked regen, but usually this in trucks that are not gettiing there engines warm enough doing in town deliveries with lots of idleling. Most of the OTR reports that I have read have no issues with having to do a forced regen.
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Old 04-16-2012, 05:17 AM   #3
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Do the maxforce engines have a DPF??
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Old 04-16-2012, 12:02 PM   #4
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I'm opretty sure all 08 and newer deisels have dpf.
The 010's have def along with it.
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Old 04-16-2012, 12:40 PM   #5
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I just skimmed the MaxxForce brochures and did not see a Diesel Particulate Filter mentioned, but when searching the MaxxForce parts list I found DPF's listed.
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Old 04-16-2012, 05:13 PM   #6
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I'm sure it has a DPF, but it does not use DEF
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Old 04-16-2012, 05:25 PM   #7
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I found the engine brochure online and yes it does have a DPF. To answer the OP's question: There are 2 different regen cycles for the DPF. One is passive and it does not inject fuel into the DPF. The other is active and it uses some fuel but I doubt you would notice the small amount. Does make heat but there is no danger of fire. Proven technology.
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Old 04-16-2012, 05:30 PM   #8
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FYI, I dropped the unit off at Diamond International, in Lowell, AR. The service manager said that J.B. Hunt was upgrading their fleet to the Maxxforce engine. That's comforting to me, they run one of the biggest OTR fleets in the US.
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Old 04-16-2012, 05:54 PM   #9
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You might be surprised how much fuel the active REGEN uses. My 2008 425HP CAT C-9 used 374 gallons of fuel in 535 hours or 21,359 miles of operation. That's 57.1 mile to the gallon. Expressed in MPG doesn't sound so bad ;-)

The fire danger has to do with how close to the ground the regen is located. On a CAT powered coach there's a warning light that will come on at less than 5mph if you're in a regen cycle. This is to warn you not to park over tall dry grass. The regen/muffler can reach 800 degrees.

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Old 04-16-2012, 06:50 PM   #10
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Gil: I cannot comment on your fuel mileage but if you had more than 3 active regens in 21,000 miles then something is wrong. Normally the passive regens are sufficient. Vehicles that are city driven do many active regens. Our 08 425 Hp Cummins powered Dynasty has had 2 full regens in 35,000 miles. Of course yours is a Cat!!! As for heat if a regen starts when you are on a freeway and you drive say another half to one hour it will be finished and the DPF would be no hotter than any muffler. If the grass was high enough to reach my DPF then I would be in a Canadian wheat field before harvest. I do admit that the whole engine area does get darn hot during the regen. I have never heard of anyone having problems or fires from the heat. I consdier the DPF to be something that is there and doing it's job properly.
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Old 04-16-2012, 07:07 PM   #11
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Quote:
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Do the maxforce engines have a DPF??
Yes they do. They just don't have a dosing valve and an SCR.
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Old 04-16-2012, 07:08 PM   #12
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The 010's have def along with it.
MaxxForce diesels do not use DEF.
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Old 04-16-2012, 07:10 PM   #13
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FYI, I dropped the unit off at Diamond International, in Lowell, AR. The service manager said that J.B. Hunt was upgrading their fleet to the Maxxforce engine. That's comforting to me, they run one of the biggest OTR fleets in the US.
Walmart also uses a large number of International trucks with the 2010 (emission) MaxxForce engines.
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Old 04-16-2012, 07:12 PM   #14
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The fire danger has to do with how close to the ground the regen is located. On a CAT powered coach there's a warning light that will come on at less than 5mph if you're in a regen cycle. This is to warn you not to park over tall dry grass. The regen/muffler can reach 800 degrees.
Gil, Absolutely "right on!"
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