Switching from flexible to fixed service and oil advice
Posted: Thu Sep 07, 2023 5:54 pm
I'm pondering the idea o switching from flexible oil service schedule to the fixed one as I think I fit the "fixed" category better (shorter trips 3-4 times a week, plus a few longer trips 1-2 times a month, and I like "sportier" driving and not sparing the accelerator every once in a while). I'm also used to servicing cars myself (oil, filters, brakes and other minor things) and have followed a 1 year/10000 km oil change interval with my previous car. With my 6C, I do have a few questions though.
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
Thanks for your advice.
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
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Thanks for your advice.