My 06 View Avg. 17.3 mpg. It had 178,000 mi. when I sold it. I used a little over 10,000 gal. of fuel. My only other choice at that time was a V10 ford that would of used a little over 20,000 gal of gas. 10,000 gal. x 3.50 = 35,000$. Take away 3000$ for extra diesel price = 32,000$ in fuel savings. I know that oil changes and fuel filters didn't cost 32,000$. I had no engine repairs only maintenance. Winnebago now offers the View with the 2.1 diesel. They tested it and claim 18 mpg in hills, 20 mpg on flat. Performance is better than you'd think. Even a gas engine at 12 or 13 mpg would not be cost effective compared to the 2.1. Oil changes for diesel are now 15000 miles, That means more savings for the diesel. Some people think I'm stupid for running diesels, I don't see how.