Re: cummins isx vs cat c15acert
Interesting on the head gaskets, haven't heard that one around here. My 12.7, 500 h.p. was getting aroung 6 almost 7 mpg, until we put a pup behind it then it dropped 1.5 to 2 mpg. Had a bad driver for a few days in harvest 2 years ago, now engine oil is blowing out the blow-by tube, a new development. Hopefully just a ring or two. Anyone with similar experience? Back to your topic, I've never drove a cat, but a few ISX's. The jake is unreal beats cat or detroit hands down, that is a big factor for me.