I know it seems as though I use WD-40 for everything except brushing my teeth but it truly is a good product. My first automatic antenna was on a '58 Lincoln Continental and it would hang sometimes and not go up or not go down, I got into the habit of spraying a little WD-40 on a paper towel and wiping it periodically. I continued doing it through my Cadillac days and am now doing it on the D. Theoretically, the motor and plastic driving shaft are working against friction, it therefore stands to reason that the less the friction the easier the motor assembly works and the longer it will be happy doing it's job. The reverse is also true. The antenna is mounted in a truly ugly, confined, spot, along with the charcoal canister, I suggest you stay out of there if at all possible. Les