New 2.lL 4 cyl diesel engine offered in Mercedes sprinters

we have a 2007 LTV ,MH with the I 5cyc MB diesel ,runs perfect ,just got back from a run to morehead city NC up and down theWV mountains ,at 65 plus mph , only avg 19.8 mpg round trip of 1800 miles. my most enjoyable time was passing a class A going up a hill going peep peep. this guy laughed at me at the fueling station ,I just could not resist the peep.I owned one of the monsters never again. pulled right up to the beach no problem.