Engine oil Mobil or LIQUI MOLY

I used it often this product and like it very much. (I used it in my 2005 E320 CDI; I haven’t used it in my W123).

I've been using liqui moly for a while now and its been great.

You can also try changing your oil to M1 15w50 full synthetic that helped me with my cold start rattling issues and the engine seems to run smoother along with the vanos idle clacking noises going away.

As to which one, the two that are reported to induce the *least* consumption are Liqui Moly Leichtlauf, and Fuchs Titan Super Syn.

Liquid Molly 5W-40 is what I use in mine.

Personally I use mobile 1 extended performance and change every 5k but I’m a bit of an oil critic

I run liquimoly and it has been great in every vehicle I've put it in. I run WIX XP filters. All my engines run beautifully. My ram 1500 tows frequent and gets ran harder than most.

Tengo un Vento 2.0 TSI gen3 que cuando lo compré usaba Elaion F50 sintético 10w40 y lo consumía. Cambié a Mobil 1 FS 0w40 y no consume más...

My 2019 consumed maybe 1/2qt for the first two oil changes. Swapped to Liqui Moly last 2 changes and been zero oil consumption.

Yes, you can certainly use 506.01 in your TDI and it's used in many TDIs around the world. However, based upon some of the UOAs offered up, I'd suggest moving to 507.00. The 506.01 has shown relatively high wear metals.