Real Life MPG with Spartan Tuner on the 6.4L - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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  #1  
Old 02-05-2010, 06:38 PM
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Real Life MPG with Spartan Tuner on the 6.4L

I want real life MPG ons the CAI, Spartan Tuner, DPF/Cat Delete, and so on. What was your MPG before and what is it now. Can't seem to get any honest answers even by searching. I'm trying to Convince my wife but we have the money this year and want to do it but if it takes 5 years to get the money back from MPG I'm not doing it. The power I'm sure is worth it but I need to get some money back from MPG...

What I get now.....

Easy driving City/Hwy 14-15 MPG
Hard driving City/Hwy 10-12 MPG

Easy driving City 9-12 MPG
Hard driving City 5-8 MPG

Easy driving Hwy 15-18 MPG
Hard driving Hwy 13-15 MPG

What should I expect afterwards?
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Old 02-05-2010, 07:41 PM
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Im currently runing the 250 tune with an aFe OEM replacement filter and a 5" Flo-Pro exhaust and im getting

Easy Driving: 18-20 mixed
Hard Driving: 15-17 mixed

This is with no lift and stock wheels/tires.
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Old 02-05-2010, 08:21 PM
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Was seeing 11-12 mpg before spartan (stock). Now seeing 15-16 with 4.5" lift & 37" Spartan 275 tune

What is your email some guy made a fuel spreadsheet from spartans forums. You can put in cost of fuel and before / after mileage will let you know how long till it pays for itself fun to mess with.
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Old 02-05-2010, 09:47 PM
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I run the 210 and have been an average of 17mpg mixed. You also can extend your oil changes since there is no more fuel contamination from the regen.
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Old 02-06-2010, 04:41 AM
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Quote:
Originally Posted by 2005josh2006 View Post
Was seeing 11-12 mpg before spartan (stock). Now seeing 15-16 with 4.5" lift & 37" Spartan 275 tune

What is your email some guy made a fuel spreadsheet from spartans forums. You can put in cost of fuel and before / after mileage will let you know how long till it pays for itself fun to mess with.
I tried to down load it but it said the file is currupt.... My email however is steeda50mustang88@comcast.net As of now I figured it would take about 2 years to payback on an average of 4 miles per gallon inprovement. I told the wife a year..... So I really been on the phone alot and getting emails so it should help. She just don't like the extra money for the TCM
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Old 02-06-2010, 04:56 AM
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Forget the TCM, run the 275 tune which is probably the best tune for MPG and call it a day.... The TCM is really only needed for the 310 tune....
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Old 02-06-2010, 05:05 AM
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I AVERAGED around 14mpg with 38s, and now around 13mpg with 40s, I seen 18-19 hwy with 38s about 17 with the 40s....this is running the 310 tune

I have set mine to stock before with the DPF on and got 8 with the 38s in town and 9 highway for a comparison.

Expect a SOLID 3-5 mpg increase..but much improved overall drivability and course way more power
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Old 02-06-2010, 06:58 AM
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I have seen barley any increase in MPG with my spartan, was averaging 11.5 mixed now getting 12.5 mixed. I hope this is because I'm in a cold weather climate and the truck runs cold most trips as I only have a 20 minute commute.
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Old 02-06-2010, 07:30 AM
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It all depends on your truck, we all get different results some not as good as others. Mine was 10city/14hwy now Spartan 275 12.5/18
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Old 02-06-2010, 07:43 AM
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Quote:
Originally Posted by johnny9r View Post
I have seen barley any increase in MPG with my spartan, was averaging 11.5 mixed now getting 12.5 mixed. I hope this is because I'm in a cold weather climate and the truck runs cold most trips as I only have a 20 minute commute.
The cold definatley has a say so in your MPG. Since it got cold here my MPG has droped dramatically. I would honistly be expecting somewhere in the early 20s when it warms up.
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