First UOA from our CPO 2016 Mini Countryman S. This car has the 1.6L T-GDI N18 Prince engine. Mann oil filter used.
Initial impressions, questions:
- Where is the titanium? My last UOA of this oil had around 50ppm of titanium. These bottles sat for about a year, but they were shaken vigorously prior to filling.
- Iron is a little high, but this is only its fourth fill of oil (see below).
- Insolubles... this is the first UOA I've received with insolubles above 0.1%. Could this be due to GDI soot?
- Viscosity loss is more than expected. Previous UOA of Castrol 0W-30 (non-GDI engine) was 11.7 after 5k miles.
- Refilled with Castrol 0W-40
History:
- 1: 9,900 mile OCI (FF)
- 2: 7,600 mile OCI (BMW 0W-30 LL-01FE)
- 3: 3,200 mile OCI (BMW 0W-30 LL-01FE)
- 4: 3,600 mile OCI (Castrol 0W-30 LL-01... this fill)
Initial impressions, questions:
- Where is the titanium? My last UOA of this oil had around 50ppm of titanium. These bottles sat for about a year, but they were shaken vigorously prior to filling.
- Iron is a little high, but this is only its fourth fill of oil (see below).
- Insolubles... this is the first UOA I've received with insolubles above 0.1%. Could this be due to GDI soot?
- Viscosity loss is more than expected. Previous UOA of Castrol 0W-30 (non-GDI engine) was 11.7 after 5k miles.
- Refilled with Castrol 0W-40
History:
- 1: 9,900 mile OCI (FF)
- 2: 7,600 mile OCI (BMW 0W-30 LL-01FE)
- 3: 3,200 mile OCI (BMW 0W-30 LL-01FE)
- 4: 3,600 mile OCI (Castrol 0W-30 LL-01... this fill)