800 Mile Club

painemann · **Joined:** Sat Dec 20, 2008 7:02 pm **Posts:** 607

I can get around 30mpg highway no problem, could have something to do with engine brake in also, a engine with 100,000 miles might do better then one with 50k!

mikey1273 · **Posted:** Tue Mar 22, 2011 9:20 pm

I averaged 32 MPG from york,pa to easton, md the drive down is mostly down hill and fast highways with traffic you can draft. the trip back was like 29 MPG this is with the ECO tune and no lift just the larger tires I have.

CATCRD · **Posted:** Thu Mar 24, 2011 12:01 am

The biggest factor in good mpg is the driver, so just because one can't do it in their CRD doesn't mean it can't be done.

BTW I've gotten 22.5 gallons into the tank on more than one occasion.

truckbouy2 · **Posted:** Thu Mar 24, 2011 8:45 am

CAT... A two crd family, I LIKE to see that. "A family that burns diesel together, stays together..." Psalms 14

Jay ne Ohio · **Joined:** Sun Dec 12, 2010 5:49 pm **Posts:** 216

My 2006 is running an InMotion Stage 2 and will get 30 mpg on the highway at 65 mph using summer diesel. That is calculated by adding 10% to the odometer miles and dividing by actual gallons used. If I use the actual odometer reading, the mileage is just over 27 mpg.

My 2005 averages 18 mpg in stop and go driving using an InMotion Eco tune and carrying 1000# of tools in the back. Some day I will take it on a highway trip and see what it can do!

Greasey Bob · **Joined:** Tue Dec 14, 2010 3:34 am **Posts:** 228

I just drove the NC from south Florida I filled the diesel tank on Friday and my wife drove her normal stuff and we left on Tuesday for NC. She had 3/4 of a tank of diesel when we left. And I carried around 70 gallons of grease (WVO) on the trip. Total trip miles was 2300 miles. Two day after we got back I filled the diesel tank and it took 10 gallons of diesel it was a little more than 1/2 of a tank on the gauge. Total miles was 2442. That works out to 244.2 mpg that would be our best tank so far. We drove 76 mph with the cruise control on. Lots of up hill driving also.

Anyone who is complaining about their CRD I will buy it for really cheap and take it off your hands to do you a favor. I just sold my back up gas powered car that ran great for 153k miles. And it was still runnig great.

But this CRD diesel is by far the greatest WVO powered vehicle I have seen. I might tone that down a little when I have to change the timing belt in 10k miles. But still a great vehicle.

papaindigo · **Posted:** Thu Mar 24, 2011 6:18 pm

My last really long trip (2,000 miles +) as reported to GDE post ECO tune in Sept 2009.
Just returned from a round trip to Baltimore, MD with essentially all the driving on Interstate or US highways except for passing through small towns in SE Georgia on US 82 and 84 (forgot to mention some "local" DC driving). Hand calculated mpg (odometer reading corrected to match GPS and with all fill-ups showing clear unfoamed fuel at the top of the filler neck) ranges from a low of 29.7 (some rain and consistent headwinds - 2011 hindsight the tsat had started to fail by opening early on this and all subsequent tanks) to a high of 33.9 (61-62 mph or 1,800 rpm with/without AC) with a whole trip average of 32 even (2011 update - would have been a solid 33+ but for the tstat as noted above). This is my second KJ diesel, the first having come out second best when I stopped for the red light and the dump truck behind me did not, and both that KJ and this one (both 2005s) typically got 28 or a bit less mpg in similar driving situations. Hence I am seeing a net overall mpg improvement with the GDE tune of 10-20% (2011 update - closer to + 20%) depending on speed, wind, ac, road condition, etc.

As to in town (25-45 mph with lots of traffic lights and a daily roundtrip 18+ mile commute) I am less sure of the results but based on one tank full and 425 miles I appear to be looking at about a 10% improvement from 20 mpg or a bit less to essentially 22mpg. (2011 update, when I could force the temperature gauge up to a normal reading despite the tstat issue I consistently got 22mpg+)

Update - bad tstat recently replaced with OEM pending Kap update (did mine early so stoutdog could use my core as he is a starving grad student) so temp is no longer an issue. Have a more recent version of the Eco Tune which appears to have corrected the EVIC and I recently unpluged the viscous heater. Not sure but it looks like I might be approaching 24 mpg in town. No clue as to highway.

ibedonc · **Joined:** Mon Feb 12, 2007 2:40 pm **Posts:** 236

truckbouy2 wrote:

CAT... A two crd family, I LIKE to see that. "A family that burns diesel together, stays together..." Psalms 14

I have 2 also

I have gotten 33 in my 05, it has 33k on the motor and 170k on the chassis

stoutdog · **Posted:** Thu Mar 24, 2011 9:55 pm

papaindigo wrote:

Update - bad tstat recently replaced with OEM pending Kap update (did mine early so stoutdog could use my core as he is a starving grad student) so temp is no longer an issue.

My highway average, doing 75mph, is around 29mpg. If I slow that down to 60-65mph, I get closer to 33-34mpg. That was before Kap's tstat upgrade, though I didn't notice much of a change on the first full tank.

My "in town" driving nets more like 26-28mpg, but that is mostly short jaunts on the freeway around Phoenix. I tend not to drive on surface streets, at least in Tempe, as the traffic engineers here flunked out of traffic school and it is, very nearly, faster to ride a bicycle. The lights are perfectly timed so that you hit every single one. Yes, I have seriously manually biked multiple blocks next to the same four cars. :banghead:

JCDuke · **Joined:** Mon Feb 07, 2011 8:54 pm **Posts:** 6

I have recently gotten 23 MPG out of mine which is the best I have ever seen in mine. I did pick up almost 2 mpg when I unplugged the EGR MAF. I got ~435 miles on a tank yesterday. I would love to know how you guys get upper twenties. On another note I have personally seen the odometer start ticking off tenths of miles while in park. This was right after start up. I dont know if it was a one time thing or not but it makes me doubt that I actually got 23 mpg now. Has any one else seen this happen?

tulsa · **Posted:** Sun Mar 27, 2011 12:40 pm

JCDuke wrote:

I have recently gotten 23 MPG out of mine which is the best I have ever seen in mine. I did pick up almost 2 mpg when I unplugged the EGR MAF. I got ~435 miles on a tank yesterday. I would love to know how you guys get upper twenties. On another note I have personally seen the odometer start ticking off tenths of miles while in park. This was right after start up. I dont know if it was a one time thing or not but it makes me doubt that I actually got 23 mpg now. Has any one else seen this happen?

You need to measure distance with a GPS.

1TDI4Me · **Posted:** Mon Mar 28, 2011 12:19 am

I got this '06 CRD just before the snow flew so it's all been on winter blend and no tune. Average over a few thousand miles is just over 21 mpg on the EVIC.
I did a test and reset the EVIC as I entered the highway, drove just over 65mph for 60 miles and ended up at 29.2 mpg. Should do better with warmer temps and summer fuel. May do the GDE Eco before next winter. Now, it's Mustang weather.

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