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FCA EcoDiesel 3.0L V6 Tune Details

FCA EcoDiesel 3.0L V6 Tune Details

Engine Output Comparison
Production Hot Tune
240hp @ 3600rpm 1,2
220hp @ 3600rpm 3
248hp @ 3300-3600rpm 3
( > 230hp @ 2900-4100rpm 3)
420lb-ft @ 2000rpm 1,2
365lb-ft @ 2500rpm 3
420lb-ft @ 2700rpm 3
( > 400lb-ft @ 2000-3250rpm 3)

1 = Manufacturer declared flywheel power
2 = OEM declared output is only available for 90s; then a lower continuous output is available
3 = GDE measured rear-wheel engine output

As indicated above, the Green Diesel tune achieves a broad gain over the torque curve giving the driver a huge improvement in the drivability and "seat of the pants" feeling of the vehicle. Since the transmission is downshifting before peak-torque is reached when engine speeds are below 2300rpm, the gains in this area are not as important to the customer compared to the higher engine speeds.

Also, the max power of the engine is achieved as soon as possible with the hot tune and maintained over a plateau as wide as possible (roughly 300rpm). This gives a noticeable gain in the performance feeling of the engine while accelerating.

Real-world Consumption Improvements

As much as everyone likes to bench race about how much more power their engine makes compared to another one, what really matters to everyone's bottom line is how much farther they can go with the same dollar value of fuel. Here at GDE one of our most important goals is to make the engine as efficient as possible to give you the customer the best possible fuel economy (and also DEF economy too). During the course of our tune development, we characterized three different cycles (pure city, mixed driving, and freeway) in order to have a comparison as un-biased as possible. In the table below are the high-level results of the cycles:

RouteTune Fuel Economy (mpg)DEF Consumption (mpg / DTE) Regen Interval (miles)
City Cycle OEM 22.5 1428 / 11427 36-55
GDE 28.0 2080 / 15598 300
Mixed Cycle OEM 26 1282 / 9616 53-127
GDE 32.2 1594 / 12749 470
Highway Cycle OEM 27.5 782 / 6253 415
GDE 31.6 1268 / 10144 595

EcoDiesel 3.0L V6 City Cycle Report
EcoDiesel 3.0L V6 Mixed Cycle Report
EcoDiesel 3.0L V6 Highway Cycle Report

As shown in the recap table and the above full reports, it's clear that the GDE tune achieves substantial improvements over the stock tune. These gains are not only in fuel/DEF consumption but the large improvement in DPF regeneration intervals means that your oil will stay cleaner for a much longer time both due to fuel dilution (from regen post injection) but also from less soot in oil accumulation. This means that your engine will last for a much longer life and give you the customer many fewer issues.

EGR Diffuser Tube from Ram EcoDiesel running stock tune for 13k mi in driving close to "city cycle". The pipe is clearly caked in moderate deposits of oily soot.

EGR Diffuser Tube from GDE's Ram EcoDiesel running the GDE tune for about fifteen-thousand miles. The amount of soot present is almost negligible (only ran for a few thousand miles with EGR active), but is coated completely in an oily film thanks to the CCV oil separator's performance.

Benefits and Features of the GDE tunes for the EcoDiesel V6s (Ram 1500 and Jeep Grand Cherokee)
  • GDE Combustion Concepts
    • Optimized fuel economy (3-5mpg* improvement) both while driving and at idle
    • Reduced engine soot (in exhaust, in intake manifold, and in oil)
    • Improved DEF consumption
    • Engine longevity increased
    • Transient management of injection timing to reduce combustion noise
  • Enhanced DPF management
    • Updated soot models and regeneration triggers based on GDE Combustion Concepts - longer intervals between regenerations
    • Refined regeneration control for better soot burn, 800mi or more in certain conditions
  • Better transient engine performance
    • Faster time-to-torque giving elevated customer confidence in the driving experience
    • Required accelerator pedal effort to hold constant speeds is reduced
    • Engine performance is improved over stock from sea level to 12000ft elevation
    • At 5000ft, 0-60mph is 1.5s faster; at 9000ft, 0-60mph is 0.75s faster
  • Refined cruise control operation (only for vehicles without adaptive cruise control)
    • Retuned speed control for improved fuel economy
    • Better gear holding during accelerations and uphill driving
    • Lower possible set speed (15mph instead of 25mph, can resume from 5mph)
    • Faster buttons' response
  • Superior management of grille shutters
    • Shutters will now function in cold ambient temperatures for better warmup performance
    • More expansive criteria for closing the shutters
  • Improved operation of three-way coolant valve to give engine warm-up benefits
  • Two-footing driving is now permissible
  • Eliminated high pressure pump noise for MY15 and newer vehicles
    • Also applicable to MY14 vehicles that have been recently re-flashed
  • More intuitive driver indications
    • "Engine Power Reduced" warning for hot oil temps activated at lower temp
    • Glow plugs indicator will be displayed only when glow plugs are actually on
  • Improved cooling fan control
    • Fan will now run for a certain amount of time after shut-down to cool down the engine and exhaust system
    • Activates if either the regen is still active when the engine is shut off, or if the exhaust temps are above a prescribed limit
    • Earlier activation based on coolant temp while driving to keep engine and oil cooler
  • Inducement improvements: torque limitation instead of no-start, activates after one key cycle instead of immediately.
  • Disabled low voltage charging mode in order to properly drive electrical accessories in all conditions
* 3-5mpg fuel economy improvement is an estimate: your personal gain might be higher or lower depending on your usage and driving habits.

Tune Options
  • Engine Performance Curve
    • Eco vs Hot tune (Hot tune has higher full-load output, higher allowable exhaust temps)
  • Engine braking while coasting
  • "Regeneration in progress" message activated for all regenerations
  • Custom requests!
Green Diesel Engineering
(248) 977-9531
Solution Graphics