I guess I'll throw in a couple more things. The Duramax is a great engine, we've not had any problems and it comes stock with a lot of power. Maybe people don't like the idea of it being an Isuzu and not an American engine. I try to buy American made products myself whenever I can. But, don't forget that everything these days is a mix of American and foreign parts and labor. I worked for Cummins for 7 years and I can tell you for a fact that even though the Dodge pickup diesel engine is assembled here in Columbus IN, a lot of the work and parts are outsourced to companies outside the US and they are pushing hard to send even more of it overseas. Yes, the Duramax engine is a new design, but it was designed by a company with over 60 years of experience in designing and building diesel engines and it was a joint project with GM. Check the Duramax web site and under FAQ
www.duramaxdiesel.com it states:
Q: Where is the final assembly point for the Duramax Diesel?
A: Flint and Pontiac East (both located in Michigan) manufacturing facilities are the final assembly locations for the Duramax Diesel.
Q: Does GM have part ownership in Isuzu and Allison, and was that part of the reason in selecting them as a vendor?
A: Yes, General Motors owns a piece of Isuzu. However, GM looked at every diesel manufacturer individually to develop a new diesel engine. Isuzu offered the best product. GM owns all of Allison, but it is an independent business.
Q: Is The Duramax engine another "converted gas engine?"
A: No, this engine was designed from the ground up with the most current technology by Isuzu Motors Limited. Isuzu has designed and built high-quality diesel engines for over 60 years.
I get tired of buying foreign products all the time too, since I feel like I should help the US economy rather than some unappreciative foreigners, but unfortunately it's either that or go without. Almost everything I buy nowadays seems to come from China. I wanted to buy an inflatable water slide for the kids - they are all made in China. In my opinion, the Cummins, Duramax, and Navistar diesels are all excellent engines. The Cummins engines are built in Columbus IN, the Duramax engines are built in Flint and Pontiac East MI, and the Navistar engines are build in Indianapolis IN.