chipping my 05 5.9CTD
I have a 410 rear end in my 2005 dodge 5.9 ctd My MPG averages 13 local, 16 highway w/o f/w I get 10 to 11.5 towing. Most miles not towing. I've had it reflashed twice. I'm now out of warrenty with 75000 miles, but 6 years old. Is it worth getting a performance tuner. A guy on RV net claims a Smarty Jr gave him +3mpg solo and 1.5 to 2 towing. It would pay for itself in one year if those figures are solid averages. Any advise appreciated. As stated, out of warrenty so no concern there.
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