Mar-17-2014 08:22 PM
Mar-18-2014 01:28 PM
rtmcavoy wrote:
I recently borrowed my buddies 03 Ram DRW 3500 5.9L cummins for a trip where I drove a little over 300 miles and averaged 17 mpg on the way there and 16.2 mpg coming home. I drove between 60-65 mph towing 6500-7000 lbs. I reset the mpg computer before I left the house. The average was 20.9 when I reset it. My buddy occasionaly tows his boat 1 mile to the boat ramp and drives it approximately 2 miles to work. The only mod the truck has is a programmer. I'm not sure what brand. Although this is fabulous fuel mileage, I am worried that it might be too good to be true and harming the engine. Thanks in advance for your input.
Bionic Man wrote:
I had a Smarty JR for the last 2 years I had my 03. Loved the change in power. The overhead reading wasn't right when it was stock, and it was WAY off with the Smarty. That said, there was very little change in MPG vs stock.
2500 Grunt wrote:
Most harmful thing (in addition to just beating it all the time)is to add rail pressure b/c it's hard on injectors. I believe the Smarty JR does not add rail pressure? Only timing and duration (which adds cylinder pressure) in SW 1, 2 or 3.
Mar-18-2014 01:14 PM
Mar-18-2014 10:59 AM
Mar-18-2014 07:00 AM
Mar-18-2014 06:19 AM
path1 wrote:My '01 is the same.
My (2001 5.9) overhead computer is always 1 or 1 1/2 miles off from doing the math long hand, usually to the plus side.
Mar-18-2014 06:15 AM
path1 wrote:
My (2001 5.9) overhead computer is always 1 or 1 1/2 miles off from doing the math long hand, usually to the plus side.
Mar-17-2014 09:32 PM
rtmcavoy wrote:
I recently borrowed my buddies 03 Ram DRW 3500 5.9L cummins for a trip where I drove a little over 300 miles and averaged 17 mpg on the way there and 16.2 mpg coming home. I drove between 60-65 mph towing 6500-7000 lbs. I reset the mpg computer before I left the house. The average was 20.9 when I reset it. My buddy occasionaly tows his boat 1 mile to the boat ramp and drives it approximately 2 miles to work. The only mod the truck has is a programmer. I'm not sure what brand. Although this is fabulous fuel mileage, I am worried that it might be too good to be true and harming the engine. Thanks in advance for your input.
Mar-17-2014 09:28 PM
Mar-17-2014 09:04 PM
Mar-17-2014 09:03 PM
Mar-17-2014 09:01 PM
Mar-17-2014 08:26 PM