Old Pickup Truck

Grandpa and Grandma got their tree and are driving home to get it all decorated for the holidays. They like to pass through town to get a chance to see all the store windows with their seasonal displays. They've been using their trusty pickup to do the same thing for many years now--it's their family tradition. The pickup may not be new like it once was, but it still does the job. The truck runs great. What's a little rust when it starts up every time?