I think that that the oil/service interval reminder can be reset quite easily via obdeleven or perhaps even without it (or without VCDS etc.) just by pressing a few buttons on the cluster if I remember correctly - does switching the service schedule require more coding apart from just resetting the interval? I would assume so, in order for the car to tell me the correct interval. If so, can this be done via obdeleven or do I have to use more advanced things such as VCDS?
The next thing is the oil choice itself. 6C uses 4 L of VW502 (recommended 5w-40) or VW504 (recommended 5w-30) depending on the chosen schedule. Every oil change so far was done with Castrol Edge 5w-30 (VW504), the car has done around 40k. Having used Castrol in my previous car as well, I searched for VW502 5w-40 spec Castrol Edge and found out that they used to sell it, it had the ACEA A3/B3 spec and conformed to VW502, but I can no longer find it in stock anywhere, and it is no longer even listed on the official Castrol site.
It seems that the only 5w-40 Castrol Edge is the ACEA C3 one which only has the "VW 505 00/ 505 01" spec and supposedly replaced the older A3/B3 (VW 502 00) one.
To sum it up - given that the newer C3 variant of Castrol Edge 5w-40 is only compatible with VW 505 00/501 which is supposedly for TDI engines, what would you recommend? Which 5w-40 oil do you guys use? Or 0w-40 even? Or perhaps should I stick to 5w-30 given that Castrol makes it in the VW 504 00 spec? Or screw the spec and use the C3? So many questions
![Very Happy :D](./images/smilies/icon_biggrin.gif)
Thanks for your advice.