After playing with the previous 0.032" aluminum door I made yesterday, I decided to re-make the oil filler access door out of more substantial 0.040". So today I traced and cut out a new door, cleaned up the edges, and began the process of bending it to match the other door. It's not nearly as easy with the thicker aluminum. I used a 10-pack roll of painter's tape to get the bend started, but I may have to locate some 4" PVC pipe to finish it.