Torqued_Up Posted February 21, 2007 Share Posted February 21, 2007 I have been hearing that the new engine gets worse fuel mileage than the 6.0 but nobody hasgiven any real numbers I know Ford doesent put them on the window stickers. Anybody know of any REAL numbers? Quote Link to comment Share on other sites More sharing options...
DamageINC Posted February 21, 2007 Share Posted February 21, 2007 It's hard to gauge because fuel economy is going to be very directly related to fuel quality as well. I've heard that 5-8% on average seems to be the going figure, though. I will mention that ***if*** say, someone happens to flash-tune the ECU & eliminate DPF strategy, then fuel mileage will actally be higher than that of a similarly tuned 6.0. Dave Quote Link to comment Share on other sites More sharing options...
snw blue by you Posted February 21, 2007 Share Posted February 21, 2007 It's hard to gauge because fuel economy is going to be very directly related to fuel quality as well. I've heard that 5-8% on average seems to be the going figure, though. I will mention that ***if*** say, someone happens to flash-tune the ECU & eliminate DPF strategy, then fuel mileage will actally be higher than that of a similarly tuned 6.0. Dave Well that pretty much stands to reason, but I wonder just how much fuel is being dumped? Seems that even a gallon would be an aweful lot. BTW, Has anyone experienced a regen? I did! With the EGR throttle wide open, cleared the class out, and stunk for the rest of the day. I shut it down while it was happening and then checked the EGTs number three reached just over 1000 dgrs F. Seems in school that the third class third workgroup got the pleasure of gettin' the regen. I told the guys about it and asked that if it happens when I have one in the shop, TO PLEASE NOT PUMMEL ME. Quote Link to comment Share on other sites More sharing options...
rockymtn003 Posted March 7, 2007 Share Posted March 7, 2007 Two new owners that I have talked to and were previous 6.0L owners have said it's about the same. This was at the 12 to 14 mpg range. Both are in construction with a double axle trailer and a bobcat on the rig. One truck has 9K for mile already. Quote Link to comment Share on other sites More sharing options...
DieselD Posted March 7, 2007 Share Posted March 7, 2007 I hear is supposed to be the same as a 6.0 within about 1/2 mpg due to the regen. kinda hard to tell since its so early, gotta break in that new engine Quote Link to comment Share on other sites More sharing options...
Alex Bruene Posted March 8, 2007 Share Posted March 8, 2007 I had one today with terrible fuel mileage. The IDS fuel economy monitor pegged it at 47 L/100KM, which in English is a tad better than 5 MPG. Turns out that this vehicle has been city driven since new, and has been trying to complete a regen for a LONG time... I had to perform a manual regeneration and it bumped the mileage all the way up to 23 L/100KM. It did however also have all the symptoms of a regen in progress, i.e. fast idle, fan noise, lack of power. I informed the customer that it was regenerating... to that he asked what that means /forums/images/%%GRAEMLIN_URL%%/shrug.gif. As for mileage, the cat I talked to at hotline says these bad boys are supposed to get about 15 MPG... but 5-6 MPG is normal during regen... Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted March 16, 2007 Share Posted March 16, 2007 Alex, there is a PID for regen status.... Done any mudflaps lately? Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted March 16, 2007 Share Posted March 16, 2007 Had a guy in earlier this week with my first check engine light and his dash was reporting 13.2MPG which is not off from what I have seen with other trucks with a 6.0 or even a 7.3. Okay, I hear the on board fuel computer is not renowned for accuracy but it does give a basis for comparison. When we delivered the first trucks we got in the weather was very cold here for NJ and there were immediate complaints of about 10MPG. New truck? Cold weather? Lead foot? Nobody has come directly to me complaining about !@#!?$! poor mileage yet so it can't be all that bad. It seems to me that anywhere between 12 and 16 MPG in general is the norm for these trucks and I wonder if the new engine will fall into the same range but a lot falls on the usage and the driver... I know of a couple older trucks getting close to 20 but they are mostly highway trucks. Quote Link to comment Share on other sites More sharing options...
Alex Bruene Posted March 16, 2007 Share Posted March 16, 2007 I know there is a PID for DPF status, but this one for some reason would not come off of "active", but the DPF pressure was only at around 0.12 psi. Even after I let it run out in the lot for nearly 2 hours. When the PID is active, it won't allow you to run a manual regeneration. What I ended up doing was disconnecting the batteries, then hooking it all back up and the running a manual regeneration. It's worked well up until now (knock on wood). I called hotline on it, and they were stumped on why I had to do that too... Quote Link to comment Share on other sites More sharing options...
Diesel Jay Posted March 16, 2007 Share Posted March 16, 2007 I know there is a PID for DPF status, but this one for some reason would not come off of "active", but the DPF pressure was only at around 0.12 psi. Even after I let it run out in the lot for nearly 2 hours. When the PID is active, it won't allow you to run a manual regeneration. What I ended up doing was disconnecting the batteries, then hooking it all back up and the running a manual regeneration. It's worked well up until now (knock on wood). I called hotline on it, and they were stumped on why I had to do that too...There are some pretty significant bugs in the Regen strategy that Ford is working on. There will be a reflash coming that addresses those. When? Not entirely sure.... - Jay Quote Link to comment Share on other sites More sharing options...
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