Bondo 233 Professional Gold Filler Quart Can - 14 oz.
Use what the pros use.  The secret to this product is its superior adhesion properties which allow a bond to form to double-coated galvanized steel present in newer vehicles.  Bondo® Professional Gold Body Filler also uses state of the art resin techonology which makes mixing, applying, and sanding a breeze.  Go for the gold and you won't be disappointed.