Gary, if the series 60 is a EGR engine don't expect 7 mpg like Jim's not going to happen all the casino buses that make the run to Phoenix are 5.8 mpg you can Prolink anyone any day of the week and it comes up 5.8 in Prevost or the MCI's
I don't believe it is an EGR engine. The engine is in a 1996 truck and is the original engine, just rebuilt. I see TomC just posted some info on that in another thread.
If I don't see any gains, I would be really suprised. But if nothing else, I'm sure to gain climbing abilities.