I had sawdust, aluminum pieces and misc. other junk, appear after every trip in my last 5er; that I bought new. Always thought that the appearance would slow , but somehow it didn't. Current MH, 10 years old when purchased, still has stuff show up every year. Dropped the roof vent trim, and found 1/4" of stuff built up there. Can't wait to see what comes out of the furnace ducts this year.
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.