I just put new plugs and wires on mine but I changed the oil BEFORE it went in to storage. I was always told that is how to do it, put fresh oil and filter in and drive no more more then needed. This way when you fire it up in the spring its got clean fresh oil
Maybe it doesn't matter, lol
Car looks great, so nice winter is over. Wasn't too bad of a winter but long sunny days are still much better.