Hi all,
I just received my car's UOA from Blackstone Labs. The car is a BMW 3 series, E90 320d with N47 engine and 177HP.
The car is model 4/2008, has 31500KM up so far and the factory oil was changed at the first 2250KM, mainly because the factory uses the old Castrol SLX 0W30 for the engine, while I wanted the new Castrol Edge Series Oil to use.
At the oil change in 2250KM I used Castrol Edge Turbo Diesel 0W30, kept the oil for 28336KM and change it a few days ago with the engine having 30500 KM's in total.
Blackstone Comments: "Universal averages show typical wear for this type of diesel after 9,700 kilometers of oil use. This 0W/30 oil was in use 28,336 km and most wear metals and silicon were high. The high wear is from new parts breaking-in plus the very long oil change. Silicon is from sand-casted parts plus lubes/sealers used at the factory. Soot levels were high due to the long oil run. The oil's TBN was 1.9, showing very little active additive left in the oil. This much metal makes the oil too abrasive for use. Suggest a 15,000 km oil run & check back. Lots of this stuff will wash out."
Waiting from comments from the experts....
I just received my car's UOA from Blackstone Labs. The car is a BMW 3 series, E90 320d with N47 engine and 177HP.
The car is model 4/2008, has 31500KM up so far and the factory oil was changed at the first 2250KM, mainly because the factory uses the old Castrol SLX 0W30 for the engine, while I wanted the new Castrol Edge Series Oil to use.
At the oil change in 2250KM I used Castrol Edge Turbo Diesel 0W30, kept the oil for 28336KM and change it a few days ago with the engine having 30500 KM's in total.
Blackstone Comments: "Universal averages show typical wear for this type of diesel after 9,700 kilometers of oil use. This 0W/30 oil was in use 28,336 km and most wear metals and silicon were high. The high wear is from new parts breaking-in plus the very long oil change. Silicon is from sand-casted parts plus lubes/sealers used at the factory. Soot levels were high due to the long oil run. The oil's TBN was 1.9, showing very little active additive left in the oil. This much metal makes the oil too abrasive for use. Suggest a 15,000 km oil run & check back. Lots of this stuff will wash out."
Waiting from comments from the experts....