I normally give a good cleaning inside and out. But I normally wash it at least once a week anyway. This spring I'm going to put the lawn sprinkler under it and clean the underside that way.
That is a good one Zip,I have never thought of that. With all the winter highway miles I put on there has to be sand/salt in every nook and cranny. I am sure a blast with a pressure washer at the car wash isn't getting half of it.