This is the second sampling for my 2010 Subaru Forester with the N/A 2.5L engine. The oil was 5w-30 Mobil 1 (SN) + 1/2 bottle of MoS2, Fram Ultra filter, and Fram air filter. Miles on the oil was 9088 miles and 58999 miles on the Forester total. The Forester is driven by my wife and sees trips daily of 25 miles always getting up to temperature, no short trips. Driving is pretty easy but is 50/50 city/interstate with some rush hour traffic here is Portland, OR. The Forester has been a great SUV. I added the MoS2 just to see if there would be any change or improvement on fuel economy. I didn't notice anything increase in MPG so probably will not continue using it. But it didn't cause any issues. I cut open the Fram Ultra and there was no trace of the MoS2 in the filter (pictures posted recently). The UOA looks good to me. I will extend out to 10k miles which will be just at 1 year OCI next time and resample. Oil was changed and again used M1 5w-30 and Fram Ultra.
This is ALS labs in Portland, OR. These are the NAPA UOA kits. The viscosity barely changed at all which is amazing. (from 10.4 to 10.1) I'm really happy with this run.
DATE SAMPLED 19-Oct-14 20-Dec-13 Miles on OCI 9088 6100 Miles on unit 58999 49911 Make up oil: none none Metals (ppm) (ppm) Iron (Fe) 7 4 Chromium (Cr) <1 <1 Lead (Pb) <1 <1 Copper (Cu) 10 7 Tin (Sn) <1 <1 Aluminium (Al) 8 3 Nickel (Ni) <1 <1 Silver (Ag) <1 <1 Titanium (Ti) 12 87 Vanadium (V) <1 <1 Contaminants (ppm) (ppm) Silicon (Si) 14 8 Sodium (Na) 8 <1 Potassium (K) <5 <5 Water (%) <0.05 <0.05 Coolant No No Additives (ppm) Magnesium (Mg) 579 14 Calcium (Ca) 1187 2330 Barium (Ba) <1 <1 Phosphorus (P) 661 702 Zinc (Zn) 769 799 Molybdenum (Mo) 170 35 Boron (B) 31 54 Physical Tests Viscosity (cSt 100C) 10.1 9.4 Physical / Chemical Base Number (mgKOH/g) 2.6 2.2 Here is what the lab said: All wear rates are normal. Abrasive and other contaminant levels are acceptable. Viscosity within specified operating range.