For us, it really depends on how far we are going and how hot it is outside. I have a wireless temp sensor in the fridge, if it starts creeping over the 40 degree mark I will turn it on.
2013 Starcraft Travel Star 229TB
2011 Jayco X17Z(traded in)
2010 Jayco Jay Series 1207(traded for the 17Z)
2011 Chevrolet Silverado 2500HD Z71 CC 6.0L/3.73
Reese "Pro Series" 800lb Trunnion WDH w/sway control