Some background information on the car:
2015 MK7 GTI. Second owner (bought it at 20k). Car has been APR stage 1 since ownership. Also has a CAI and some suspension and braking goodies. Driven daily 30mi roundtrip mixture of highway and stop and go traffic. It's also the car we use on road trips. Every now and then the car gets a good beating, otherwise, driven normally. No track use.
The Mobil 1 UOA seems to show plenty of TBN left but is a little thinner than I would like (ran it through the winter)
The Castrol 5w-30 (VW Dealer per invoice) seemed to not perform as well as the Mobil 1.
Both fills used a VW OEM filter.
Any thoughts? Current fill on the car is Castrol 5w-40 that I picked up on clearance at AAP.
2015 MK7 GTI. Second owner (bought it at 20k). Car has been APR stage 1 since ownership. Also has a CAI and some suspension and braking goodies. Driven daily 30mi roundtrip mixture of highway and stop and go traffic. It's also the car we use on road trips. Every now and then the car gets a good beating, otherwise, driven normally. No track use.
The Mobil 1 UOA seems to show plenty of TBN left but is a little thinner than I would like (ran it through the winter)
The Castrol 5w-30 (VW Dealer per invoice) seemed to not perform as well as the Mobil 1.
Both fills used a VW OEM filter.
Any thoughts? Current fill on the car is Castrol 5w-40 that I picked up on clearance at AAP.
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