We have a 31 foot Keystone Cougar complete with 12 foot super slide. Features I liked: solid construction, aluminum framing, solid oak cabinetry, 2 doors, and plenty of room. Features Barb liked: comfortable living room, microwave/convection oven, and full size stand up shower. It is a solid, but heavy trailer weighing just shy of 9000 pounds fully loaded. It tows and backs easily.
We towed this unit for 8 years with our 2003 Chevy Silverado 2500HD. Towing was a breeze, the gas burner averaging from 5-10 mpg depending on terrain/conditions. With retirement looming I wanted a new vehicle and decided to go with the same truck, but this time converting to diesel. Diesel engines have gotten their fair share of pros/cons over the years, mostly cons in recent years. Chevy has significantly improved their quality with the new Duramax engine and Allison transmission combination. It features a 2 1/2 inch hitch receiver capable of 13,000 towing capacity. There will be some changes as this engine uses 13 quarts of oil (I plan on using Mobil 1 synthetic), and a Diesel Exhaust Fluid system. This system is located just forward of an improved catalytic converter system. It injects a fine mix of 90% de-ionized water and 10% urea into the exhaust that causes a chemical reaction that results in nearly 90% water vapor for exhaust. A very green vehicle. Gas mileage figures for non-towing has been right around 22.7 mpg @ 65 mpg. We are hoping for towing figures to average around 15 mpg, another significant improvement.