Took this oil sample before changing my timing belt at 161k km - a few notes:
Yes, the distance on this sample was 30k km (18,657 miles) and 11 months in the sump. I installed the DG Bypass filter with the Amsoil 2µm EaBP90 filter about 2 months into this OCI. During these 11 months I commuted through the snow & ice of winter and the blistering heat of summer, drove back & forth between Chicago & Baltimore about 7 times including pulling a one-ton UHaul trailer back to Chicago at 70 mph the entire way. I keep my oil level topped up to 3 - 5 cm over the 'full' bend in the dipstick when checked cold - comes down to the top bend when running.
Oil additives: I mixed about half a tin of Lubro-Moly MoS2 and half a bottle of ZDDPlus with a gallon of Schaeffer 9000 and used that for the 1.5 liters of top-up oil during this OCI. This might explain the slightly elevated sodium level, as would the installation of the bypass filter midway thru the OCI.
Fuel: Roughly B20ish while in the Mid-Atlantic from splash-blending Sam's Club diesel with Baltimore Biodiesel Co-op B100. B11 exclusively when back in the Land of Lincoln.
My thoughts? Great UOA. Long OCI, very low wear metals, plenty of active additive, strong TBN retention. Schaeffer 9000 is doing nicely with the Dieselgeek Bypass filter and running the snot out of the car.
Yes, the distance on this sample was 30k km (18,657 miles) and 11 months in the sump. I installed the DG Bypass filter with the Amsoil 2µm EaBP90 filter about 2 months into this OCI. During these 11 months I commuted through the snow & ice of winter and the blistering heat of summer, drove back & forth between Chicago & Baltimore about 7 times including pulling a one-ton UHaul trailer back to Chicago at 70 mph the entire way. I keep my oil level topped up to 3 - 5 cm over the 'full' bend in the dipstick when checked cold - comes down to the top bend when running.
Oil additives: I mixed about half a tin of Lubro-Moly MoS2 and half a bottle of ZDDPlus with a gallon of Schaeffer 9000 and used that for the 1.5 liters of top-up oil during this OCI. This might explain the slightly elevated sodium level, as would the installation of the bypass filter midway thru the OCI.
Fuel: Roughly B20ish while in the Mid-Atlantic from splash-blending Sam's Club diesel with Baltimore Biodiesel Co-op B100. B11 exclusively when back in the Land of Lincoln.
My thoughts? Great UOA. Long OCI, very low wear metals, plenty of active additive, strong TBN retention. Schaeffer 9000 is doing nicely with the Dieselgeek Bypass filter and running the snot out of the car.