ive googled winterizing and watched countless youtube but none shows really using rv antifreeze in the grey n black tank. so do i use 1 gal of rv anti and use a drop in chem or just rv anti no chem?
Depending on how much you use when doing the water system some will end up in the tanks and traps as a matter of course.
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
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