My stubbornness got the best of me on this one. @Canadiandiesel Shut up Spencer
The truck is doing much better with MPG already! I don't know for sure just yet. This time of year I run 13.5 to 14. I installed the Smarty at the settings Killer suggested initially late last week with some miles on the tank. But the mileage doubled between the gauge notches. This tank I ended up at 14.75 with the warm up times in there.
Killer, I'll go up one more timing notch. Driving it today I realized that is not a timing rattle I was hearing, just the typical Cummins sound. The tune seems to have made the engine maybe 10% louder. It's starting to sound like a real diesel now. LOL A sound I haven't heard for many years on my trucks.
I'll leave everything else alone and go up to 5 on the timing. I'll listen to it again. Higher cylinder temps aren't so bad as long as it's not burning pistons up. But to do that, I would think I would hear it before hand. I would love to see the curves on how they ramp the timing
Looks like the Smarty is the right answer for the early third gens.
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