3rd Gen High Performance and Accessories (5.9L Only) Talk about Dodge/Cummins aftermarket products for third generation trucks here. Can include high-performance mods, or general accessories. THIS IS FOR THE 5.9L ONLY!

Diablo and Smarty MPG

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Old Apr 3, 2007 | 06:00 PM
  #1  
ddog87's Avatar
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From: Junction City Oregon
Diablo and Smarty MPG

I just rebuilt a totaled 2003 4door 4x4 with a 5speed manual. I have been looking for programmers on here and seen alot of talk about the Diablo and Smarty being very good at HP but what about fuel Mileage??? I know on extreme settings you are not going to get good mileage but what about the lower settings , Thanks
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Old Apr 3, 2007 | 07:41 PM
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From: Off Road
My diablo predator on performance 100hp has incresed my mileage a solid 4 miles to the gallon hand calculated
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Old Apr 3, 2007 | 10:04 PM
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From: Pueblo West
The Pred 100 hp is also their economy tune - that's one reason I bought it. It didn't help mpg but is an awesome program and even more awesome for towing. I can get the same mpg on Extreme but it is hard - the throttle is pretty touchy. According to guys that used both, they vote Predator. Craig
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Old Apr 4, 2007 | 02:13 AM
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From: Edmonton, Alberta
smarty #9(170hp) + 35" Mud tires = 2.8 mpg hand claculated
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Old Apr 4, 2007 | 02:18 AM
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From: Phx
Originally Posted by ramtd02
smarty #9(170hp) + 35" Mud tires = 2.8 mpg hand claculated
I hope you mean +2.8 mpg.
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Old Apr 4, 2007 | 02:41 AM
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From: Edmonton, Alberta
LOL.....yeah thats what i meant.

I probably get a TOTAL of 2.8 mpg when playing though...LOL
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Old Apr 4, 2007 | 08:01 AM
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Originally Posted by CDoskocil9
My diablo predator on performance 100hp has incresed my mileage a solid 4 miles to the gallon hand calculated
yep yep, no doubt the perf tune is the best for mpgs, saw a gain of about 3 mpg
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