Karoq TDi - 2024 4x4

My partner has just returned with her Karoq having completed its second annual service (17,000 miles). I've just compared the current with the previous invoice and noted that last July it was filled with "HUXIL3 0 W30 Longlife oil VW Shell Helix 5 litres", while this year it's 'HUXIL4 Longlife 4 0-20".

Any ideas why a service might have used 0-20W this year rather than 0-30W as previously? Why the thinner oil?

Just because VW508 00 / 509 00, so 0w 20 FS IV is the recommended oil and not VW 504 00 / 507 00 0w 30 FS III.

Edited 27 April27 Apr by Evolution13

You would have to ask the garage/Dealership why one year they use the recommended oil specification and the next they didn't. The car's 'Owner's Manual' should tell you the oil specification VW want and alternative if not available.

Owner's Manual I guess is in one of the many menus in the car's infotainment or annoying digital version from VWŠkoda's free website. - https://www.skoda-auto.com/apps/manuals/Models

VW oil specifications - https://www.oilspecifications.org/volkswagen.php

HTH.