I suppose I like the Cat's so much cause we have several on the farm. One in our TR95, one in an old MF 1800 4wd, and one in an '88 Chevy TopKick. They all have plenty of power and seem to be good on fuel as long as they don't run at low rpm's. These babys like to rev! But I agree they are a bit louder than the Ford (Navistar really),and are louder than a comparable Cummins but the lack of maintaince on these Cat's is just as impressive as the NH combines, makes for a great combo in my opinion. But I do like the Ford, at least I can't really complain anyways. Have a good New Year!