6.7 Regen
Post Fiend
Joined: Apr 2004
Posts: 5,158
Likes: 35
From: North of Salt Lake City
I have 1000 miles and have had two regens that I noticed. Both on the freeway. The truck pops a message on the dash that says something like "Cleaning exhaust filter" for a few seconds and then goes away. There's no other messages that says what is going on. For fun, I reset my mpg and noted I was getting about 11 mpg's during the event. Lasted about 10 mins. The engine had a slightly different sound. Mileage returned to 18 or so after it was done and everything was kosher.
I've gotten the message a couple of times driving around town but I don't think any actual cleaning goes on until you get above 40 mph or so and stay there a while.
I've gotten the message a couple of times driving around town but I don't think any actual cleaning goes on until you get above 40 mph or so and stay there a while.
Elder User
Joined: Apr 2010
Posts: 664
Likes: 0
In city driving i see a regen about every 200-250miles. Sometimes more often if i start givin it some gas to get around.
It does clean at low speeds, you can watch your fuel econo bar thingy drop massively even at like 30mph. Its like half of normal when its going on
It does clean at low speeds, you can watch your fuel econo bar thingy drop massively even at like 30mph. Its like half of normal when its going on
Senior User
Joined: Apr 2005
Posts: 400
Likes: 0
From: Orlando Florida
before lifting it, i would only get one regen and 425 miles per tank.
not sure why the regens kicked in but they kill my mpg's. i can't wait till tuner and a delete.
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Senior User
Joined: Jun 2010
Posts: 168
Likes: 0
Thanks' for the info everyone. I have a 6.7 Lariat 4x4 crew cab with 355 locking rears on order and due in next week.I'm just trying to fiqure out if this is the way to go, I tow a 12k fifth wheel and get 8 mpg and empty around 16 mpg with my 6.4 Lariat 4x4 with 373 rears. My truck is making oil and goes into regen about every 125 miles and the regen last about 19 miles before it ends cycle. I have 34k on truck now and I swear that the more miles I put on it the mpg goes down more. I guess I will have to give the 6.7 a try.
Cross-Country
Joined: Jul 2006
Posts: 60
Likes: 3
From: South Louisiana
I have seen the regen message pop up twice in the 1000 miles I have on the truck so far. The green fuel economy bar drops considerably when it's in regen.
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Senior User
Joined: Jun 2010
Posts: 168
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I wonder if the 6.7 will make oil like the 6.4 with the regen. I guess we will have to wait and see.
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Senior User
Joined: Jun 2010
Posts: 168
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With my 6.4 the regen comes on around every 125 miles and the cycle last around 18 miles. The term I used making oil is the regen comes on so often that exces fuel ends up in the crank case. I have 2k on this oil change and the oil level on dip stick is well above the full mark thus the term making oil. I was just curious if the 6.7 with the regen would be the same.
New User
Joined: Feb 2010
Posts: 6
Likes: 0
Diesel fuel in the crankcase oil is bad news. I lost a diesel boat engine because of a slight rise in oil level due to a leaking fuel injector line putting fuel in the oil. It lasted about 100 operating hours and two oil changes an then the rear gears wore out due to improper lubrication. Be careful and stop the fuel getting into the oil.
Hotshot
Joined: Nov 2000
Posts: 11,591
Likes: 14
From: Pflugerville, tx
Diesel fuel in the crankcase oil is bad news. I lost a diesel boat engine because of a slight rise in oil level due to a leaking fuel injector line putting fuel in the oil. It lasted about 100 operating hours and two oil changes an then the rear gears wore out due to improper lubrication. Be careful and stop the fuel getting into the oil.
I just came back from 2200 mile trip hauling my show car, and we regened about every 200 miles in my 08 6.4l
will be interesting to see that oil analysis.(done by blackstone labs)
Sam
Hotshot
Joined: Nov 2000
Posts: 11,591
Likes: 14
From: Pflugerville, tx
how to stop it? stop the regen.. DPF delete, tuner add..(Spartan anyone).. course you void your warranty and won't pass emissions tests with that setup..
Sam