It isn't much of a risk. Good time to test is in the summer when the AC runs a bit and see if it holds up or not. I'd definitely check it on a weekly basis since you don't want it to collapse and not know and this is an unknown although they seem to have a decent offering for commercial stuff.

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01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
03 SeaDoo GTX SC Red
03 SeaDoo GTX SC Yellow
04 Tailgator 21 ft Toy Hauler
11 Harley Davidson 883 SuperLow