we own a LTV , IMHO there #1 in the building of RV,s ours a 2006 chassis with a 2007 coach mounted on it, the I 5cyc MB diesel is great , ours is the freedom serenity model just a tad bigger than the B,theres nothing better than looking at the log book and seeing over 20 mpg marked , 17teen towing my boat. we,ve made three trips to arizona and ,cruise along at 65 mph. the engine has had two problems a sensor and a air flow part all covered by warrenty. oil change is a $118. bucks every ten thousand miles. .we,ve owned class A @ B @c. even a TT . this is the best of them all . if your ever in canton ohio .stop in. did I tell you we like our LTV.. OH!! we bought the 5 cyc because the rep from MB said the 6cyc only gets 15mpg ,because of the EPA equipt added. glad we listened.