I am on the fence and would appreciate opinions. With the weather being so nice, should I change oil/ filter now or do it next year after 5K miles have accrued on my 2003 Grand Marquis w/4.6 (was my late mother's car) w/ 39k miles. I usually with 5K intervals but didn't do quite as much driving this year.I park it in in the garage for winters because being RWD it doesn't handle well in snow as compared to my truck. I last changed it August 2019 and 3700 miles have accrued since then. There is Penzoil YB 5W-20 presently in the sump.