We have just returned from 4 weeks on the road, mostly in CA with temps running for 4 days in Oroville at 104 and then 111 when we drove into Paso Robles and continued highs at or above 100. We were also in the 90's in Sacramento. I have to say I am EXTREMELY please with our 3 way 3.0 Dometic fridge. We did not travel with the fridge on but we did put a box of ice in the bottom before each travel day. We probably averaged 4 to 5 hours on travel days and the ice kept things cool and was still ice on arrival. When hooked up, both the electric and the gas kept stuff in the freezer frozen and the rest cool. We dry camped for a total of 6 days. Now, however, we took possession of our 15B in April and Reace had already started moving the top vent to the very top of the trailer and making it larger. Also, when I removed the control panel I found that there was more then 3 inches of open space above and a lesser amount to the side of the fridge. The Dometic install manual suggests that air flow above the fridge should be minimized. Before the trip, I filled that space with glass insulation and also sealed the area with foil tape. As to the milk spoilage, we now carry individual Horizon Organic milk cartons that need NO refrigeration until opened. They have a shelf life of several months and the milk tastes great also. We used these for years before we had a "fancy" fridge and freezer. We couldn't have asked for better performance under such harsh conditions.
Tim and Julie
2013 Escape 15B
2014 Nissan Frontier, Previous 2012 Santa Fe