I only hit 5K miles since my last oil change but I just realized it has been 14 months. For most of the pandemic I was stuck in town and only have a few mile drive to work. Typically I am one of those people who does routine maintenance early. Most people seem to recommend doing oil changes more frequently the less you drive (in mileage). Think any harm was done? The oil level is fine and it doesn't appear more dirty than I'd expect before an oil change. This upcoming year I will definitely be driving more but probably not over 10K. Should I be on a 6-month schedule regardless of mileage? I am a bit confused as to why more frequent changes are recommended the less miles you drive (with synthetic).