I changed the oil and filter on my '03 FXD a few days ago. I let it drain (warm) for about thirty minutes, put on the filter and poured in three quarts of H-D oil as recommended (first change) by my non-Harley Harley shop manager. My oil level now shows at the upper mark cold and about 1/4" - 3/8" above the upper mark when warm. Why is this? Do I need to drain some oil? Thanks.