Original post by: mprpich1 ,
Caterpillar C-15 ACERT ECM Tuning Options
Greetings, Let's Truck... I Have a 2005 C-15 475 ACERT in a Freightliner. I want to do something with the ECM for the purpose of fuel mileage since I haul at over 100,000lbs and currently get 4.79 mpg (90 day Avg.) I'm swamped with options and wonder if anyone can offer any insight. The PDI, Pittburgh Power Box, and Bully Dog tunes are attractive, but very expensive. What can these offer me over just going to my Cat dealer and turning it up to 550? My dad put the PDI tune, EGR delete and manifold/turbo on his ISX and saw minimal mileage gains, and is not all that happy. What should I do?