2015 accord. Love this car from a driving and operating perspective. Have seen two mild winters without much salt. Opened the left rear door, which rarely gets any use, and saw this: And this: Not pleased. I'm thinking to just degrease and put a bit of touch up paint on the hinge stop assembly, but what about the door bolt? Ospho? Cold zinc? Nothing? Ill probably give all of this hardware a little touch of rustproofing oil. Never usually touch the door jambs. I'm deficient in lubing hinges in ALL my cars too... Recommendations?