Cummins said the decrease in power is normal for the engine with 400k Any stock engine at 400k will not same power it did from factory. Blowby is...
Not even the MPG? 400 is significantly less stronger than 450
An app would be nice. I sometimes ask on the cb and can find a good place to fuel up
I have a isx15 cm2350 400 horsepower 408k miles 10-speed automatic When I bought the rig I had it dyno’d and inspected by Cummins...
