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6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis SPONSORED BY:

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  #46  
Old 07-23-2010, 04:25 PM
recycleman recycleman is offline
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Quote:
Originally Posted by StanleyZ View Post
Wow, are you towing at 80MPG. My 5er weighs just about 17K and the worst I've ever gotten was 7.5. Normal towing comes out somewhere between 8.8 and 9.3. My trucks a DRW with a 4.30 Rear axle and I tow at 60 MPH.
I bought it for a business that does stop and go driving with some highway/road stretches mixed in. I would have never bought it knowing what I know today. It's tough knowing that I could Spartan the thing and get pretty close to double the mileage. It's just not worth it for the warranty that I have on it(extended) and the fine that could be there.
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  #47  
Old 07-23-2010, 09:50 PM
capt caper capt caper is offline
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Spartanizing won't double your mileage I don't think. Not from what I've read about it. If it did I would jump on it today.
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  #48  
Old 07-23-2010, 10:02 PM
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Spartanizing ?
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  #49  
Old 07-23-2010, 11:26 PM
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Quote:
Originally Posted by recycleman View Post
I bought it for a business that does stop and go driving with some highway/road stretches mixed in. I would have never bought it knowing what I know today. It's tough knowing that I could Spartan the thing and get pretty close to double the mileage. It's just not worth it for the warranty that I have on it(extended) and the fine that could be there.
Yep, I know exactly what you mean. I wouldn't worry too much about the fine unless you're in an area where they do emissions on diesels. If you read that law the Attorney General is charged with enforcement and I don't see them having a means or the manpower to start looking under trucks for DPFs. Now the warranty is the real problem and I'm just like you say: I'd like to ditch the DPF but with only 20K miles I'm just not willing to give up my warranty.
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  #50  
Old 07-24-2010, 08:12 PM
Neil64 Neil64 is offline
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MPG

I bought my truck in Houston, TX. I started test driving it with 21 miles on it and had it overnight driving in stop and go traffic. By the time I bought it it had 154 miles on it and the tank was filled up by the dealer. The next 1500 miles were to Maryland, 99.8% of it highway.

1st tank - 14.0 hand calculated
2nd tank - 14.89 hand calculated
3rd tank - 15.0 hand calculated
4th tank - 15.5 hand calculated
5th tank - 16.0 hand calculated

Since I have been home, I got 12 mpg hand calculated mixed city and highway.

I know have over 2000 miles on the truck and I am going to start using gray Diesel Kleen soon.
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  #51  
Old 07-24-2010, 08:15 PM
Neil64 Neil64 is offline
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I forgot

I forgot to post that the above MPG were running empty bed, tailgate closed and 62.5 psi in the OEM 20s. MPH varied from 55-80. I seemed to get the best mileage driving through the Smoky Mountains at night with temps in the 70s. The rest of the trip was hot, in the high 90s.
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  #52  
Old 07-24-2010, 08:32 PM
capt caper capt caper is offline
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That's about what I get too Neil. When I hook up my 2 place trailer #3500lb GVWR I get 10 mpg.
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  #53  
Old 07-25-2010, 02:58 PM
richfaa richfaa is offline
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Welll. I pulled this very same 2006 Montana 3400 weighing @ 14K with a 05 F-350 V-10 and now a 08 F-350 6.4L only difference is 05 4;30diff 08 4:10 diff. Same camper over the same roads. Now the V-10 is a good motor but there is a world of difference in the performance of the two motors. The V-10 ran out of power...the 6.4 never runs out of power. MPg 2/4 better both towing and solo with the 6.4L.. I have been there and done that and have the numbers..If the V-10 could have done the job under all conditions we would still have it.
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  #54  
Old 07-25-2010, 03:22 PM
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Quote:
Originally Posted by Neil64 View Post
I forgot to post that the above MPG were running empty bed, tailgate closed and 62.5 psi in the OEM 20s. MPH varied from 55-80. I seemed to get the best mileage driving through the Smoky Mountains at night with temps in the 70s. The rest of the trip was hot, in the high 90s.
The Diesel Kleen will make it run a LOT quieter, and drop your regens by a lot of miles in-between.
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  #55  
Old 07-25-2010, 03:23 PM
ChargersFanInCO ChargersFanInCO is offline
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Quote:
Originally Posted by Neil64 View Post
I forgot to post that the above MPG were running empty bed, tailgate closed and 62.5 psi in the OEM 20s. MPH varied from 55-80. I seemed to get the best mileage driving through the Smoky Mountains at night with temps in the 70s. The rest of the trip was hot, in the high 90s.
I forgot to add that since it's been in the upper 90's here my mileage drops by about 1 mpg. I'm down to 17.5 or so on the interstate. Plus, my A/C is running non-stop.
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  #56  
Old 07-26-2010, 08:16 PM
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Just returned from Elkhart, In. towing my 8,000lb TT there for repairs, left the trailer and returned home to Ky empty. Going mpg averaged 12..returning, with A/C on, 22.4 mpg. That was on both secondary and interstate roads, never exceeding 65 mph. 350 miles each way. I could not be happier, truck now has 6800 miles on it, since I do not have a signature yet, the truck is a 2010 F-250 long bed, extended cab. No chips.

How does one find out what "Job" the truck is and what difference is there between "Jobs"?

Thanks, Marty
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  #57  
Old 07-26-2010, 10:54 PM
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Originally Posted by Dan_nO View Post
Spartanizing ?
It is when you take the 6.4 from a powerful truck... and turn it into a complete monster! Hahah! I have been "spartanized for 26K miles now and can't believe the night and day difference in terms of power. The decision to dpf delete and tune is a big, risky decision to make. However, to me... this was by far the best decision. I love driving, as most of the members on the forum do. So the improved performance, increased mpg, and overall enjoyment of driving the truck were well worth the expense. Even if the truck didnt get better MPG I would still have purchased the Spartan tuning and the dashdaq monitor. I am still trouble free and the majority of the time I am running either the 210 or the 275hp tunes. I pull a 10k trailer pretty regularly and I can't begin to explain how confident I feel merging out onto highways with short entrance lanes, or pulling out into traffic. Also the effortless passing on the highway, where you can go from 60 to 90 in a couple of seconds. In the winter when I have a 900lbs plow on the front and 800lbs of sand in the bed, this truck just pulls like a total animal! My 5.4 would struggle and constantly have to down shift carrying that load. It is truly amazing what these trucks are capable of.
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  #58  
Old 07-30-2010, 10:22 PM
Heavysledz Heavysledz is offline
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So I am trying to justify buying the Spartan tuner and DPF/DOC delete for my 2010 6.4L and the price tag is killing my sales pitch to the boss (wife). So I put it in crayon (atually Excel) so she could see the return of investment if I were to buy it. Here is a spreadsheet I created that calculates the following:

1. Annual fuel cost
2. % of improvement
3. Annual cost savings

All you do is input the current MPG and the anticipated (improved) MPG, the price/gal. for fuel, and miles per year driven and it calculates the rest for you.

Example:
Click the image to open in full size.

If someone can tell me how to add attachments, I will upload it......

So between the obvious fuel savings and the extended life of the oil due to no "oil Making" from the regens, it would be easy to get an ROI of about 2-3 years or so depending on miles driven and fuel costs etc.....

I know you still have to account for the risk of voiding your warranty and potential fines if caught without the proper emmisions equipment.....but all things considered, it is still a really good argument to take the plunge and buy the mod.

You can't put a price on an enjoyable driving experience.....
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  #59  
Old 07-31-2010, 09:00 AM
capt caper capt caper is offline
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I'm in the same boat. I don't put many miles on it a year. 20K per year average the last 3 years on mine.
If you were going to keep the truck for 6 years or so then maybe. We'd save on replaceing the DPF which might be expensive.
We might get more mpg's but what problems will develope from running high tunes to get the MPG in a few years.
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  #60  
Old 07-31-2010, 03:14 PM
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because of the enormous rebates right now,I am considering moving from my 2008 F350 DRW 4x2 up to a 2010 F350 SRW 4x4, LB, crew both.

this changes my rear axle from 4.10 with 17 in wheels to 3.55 with 18 in wheels (whats in stock)..

right now I get about 12.5 around town and 9 towing my 7000lb auto trailer, 14-14.5 on the hiway..

I wanted the dually to tow a 44ft gooseneck with 2 cars.. but no matter what I do, it puts me over the 26,000 limit and I have to get commercial drivers licenses and insurance.. my wife too (shared driving).. not gonna happen... and the dually, like the SRW is limited to 23,500 lbs anyhow.. (unless I got into an 11.. too much money)

so I don't NEED the dually.. now, I could USE the 4x4. got the dually stuck in the back lot in Jan after all the rain.. I don't want to be limited in what I can do..

so.. what I am seeing is that the SRWs with the 3.55/3.73s are getting better mileage than the 4.10 DRWs.. enough it might cover the payment difference..

only real difference is the ground clearance.. seems up about 6 inches over the 4x2.. altho the externals seem to be around 4.

anyone else make that switch? 4x2 to 4x4?

Sam
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Old 07-31-2010, 03:14 PM
 
 
 
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