Hellow all I read on a previous post that Chevy was hooked up with Isuzu to make a large V8 Diesel for a pickup application. I once rented an Isuzu NPR with a 15ft box. We loaded it to the roof and pulled a car behind it all the way to Charlotte from Ft Lauderdale. The truck got 14mpg going 70mph with the air on. My question is, why dont they just use the four cylinder they allready have? It is a proven engine. If it will handle the load I mentioned, surely it would handle a pickup application.