Hello all. My mom has a 2013 Passat with the 2.5L motor. She drives very little and it has about 6,500 total miles. She had the 10,000 mile service done on it about a year or so ago so the oil was changed along with the filter by the dealer. I don't drive german cars anymore so I don't know if she should go with the mileage total or for time regarding oil changes etc. Also, since it is out of warranty, any recommendations on oil and filters from a DYI standpoint? I looked thru the owners manual and it stated 5w-40 or 5w-30 synthetic rated for VW. I do all my own vehicles maintenance so doing her's won't be a big added burden. Thanks.