Changed the oil on mine today at 1,000 miles. Love how easy it was to access everything. However, it has been a bit since I’ve maintained my vehicles. I purchased the oil and filter directly from the Toyota dealership. The oil filter had a little nut in the box along with the filter. I thought it may go into the screw that the filter screwed into but it wasn’t the right size. The filter I took off didn’t have any sort of nut on it. So I just threaded the filter on and called it a day. Now I’m sitting here wondering if I should have done more investigation. Can anyone else chime in?