The traditional fridge seal check involves closing the door on a $1 bill ($5 bill if you're well off -
) and doing a tug test. It should be somewhat difficult to slide the bill out, i.e., you should be able to feel some "drag." Do it all the way around the door.
1988 Coleman Sequoia - popup (1987-2009) - outlasted 3 Dodge Grand Caravans!
2012 Roo19 - hybrid (2012-2015)
2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado 1500 Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10