MPG on a 2000 Monaco Diplomat 315hp (ballpark)
Curious of what kind of milage roughly a 2000 Monaco Diplomat gets with a 315hp Cummins
Forum Discussion
With our 400 ISL and 41' we get anywhere from 7½ to 9, depending on many factors, with speed being the main killer. I try and stay around 60± MPH and on most roads I can expect 8-8½. The 315 ISC will get about the same or a little better mileage.
