I know this is somewhat off target, but our driveway is not level, hence when we pack for a trip, we cannot start the fridge. I have found that putting a bowl of ice in both the fridge and freezer work great to get the temperature down when we finally leave and let the cooling take place while on the road. Works fine for us.
Mike and Cheri Ferguson (and Laci)
2013 Georgetown 280
Penn Valley, CA