Hi all,
Sorry to write in english, I am from Sweden and I don't write russian, by I read this forum with pleasure with google translation..
Here is an UOA of my 332 000 km 1994 Volvo 945 with B200F engine, with tractor oil Q8 1000D STOU 10W30. This car mainly does 7km trips, engine cold (no warmer), twice a day, winter (-20°) and summer (20°). So there is some fuel dilution which drop down TBN fast so I chosed 7500 km OCI.
UOA look nice with this cheap oil, despite some silicon du to air filter problem...
http://www.lubebase.com/cgi-bin/ctl/lube/Q8-T1000-10W-30?id=9818