2016 Subaru OB 2.5 100k mi, 5 qt (in/out Pennzoil Plat 5W 30, WIX 57055) w 6 month OCI (5-6k mi)
- switched from 0W 20 (2 OCIs ago) due to the oil burning issue (a bit better but not gone)
- a tiny bit of residual oil in the oil catch can
2005 Porsche Boxster 2.7 77k mi, 8 qt (out unknown, in M1 0W 40, Hengst E14HD77) w 1 year OCI (5-6k mi)
- recently acquired and suspected whether the dealer really changed the oil (due to other issues I had with them)
- the oil was clean (after 2k), as it should, but slightly overfilled with 8.7 qt (measured)
- plus the gasket was missing (no leaks though)
- also installed a Votex stainless steel magnetic drain plug instead of the soft OEM aluminum (almost stripped my friend's 986 Boxster drain plug in the past, hence the change)