I have a 2017 VW All Track with the turbo 1.8 l. I am doing 5000 mile oil changes on this car as I am afraid leaving it in will cause more deposits with DI. Seems a lot of DI car owners do this. I do leave the Castrol LL-03 507 oil in my TDI for close to 10,000 miles, however, and have had no issues in 5 years.
2013 VW Passat TDI SE, 56,850 miles Castrol Professional VW507 5W-30
2017 VW Golf All Track 16,650 miles Castrol Professional VW505 5W-40