More info than you’ll ever want to know about VWs and motor oil is here. And Rob and Dave’s Aircooled web site is awesome for lots of other VW info too!.
Suffice to say, 10W/30 or 10W/40 will be just fine.
Paul Mossberg
Former Owner of a 1981 Classic Roadsters Ltd. Duchess (VW)
2005 Intermeccanica Roadster
If you own a TDr and are not in the Registry, please go to https://tdreplica.com/forums/topic/mg-td-replica-registry/ and register (you need to copy and paste the link)