I decided for curiosity to send a sample to OAI AND Blackstone. This one has thrown me for a loop with the high Na. First a bit of history on the vehicle.
My ex gf wrecked my old 4R and I found this one with 40,6XX mi on it. At 40,720 miles I changed the oil to M1 EP 5W-30 and installed a M1-209 filter since I still had a few OCI of this combo left, it had a carquest filter and an unknown oil in the sump when purchased. I have driven a lot more than usual during the 9 mo the oil was in service. I normally dont even get 10k mi in 12 mo but I racked up 11k in 9 mo on this interval. Driving conditions are everything under the sun: 48 mi hwy commute, several ski trips, usually a half dozen low marks on the dip stick.
The sodium worries me, but I check all the fluids religiously and coolant levels have not budged. Neither wear nor the oil seem to have felt the effects of antifreeze contamination, and there is no potassium present. So either it is a remnant of the previous fill (seems a bit high for this) or I have caught a small leak in its infancy. Im going to sample current fill without changing it at 5k miles and go from there. I had contemplated pushing this fill to 15k but decided to exercise some caution and am glad I did. I should have did a shorter run to get a cleaner baseline but it didnt work out that way.
Blackstone/OAI
XXX indicates was not tested by lab
Miles on oil: 11,274
Time on oil: 9 mo
Miles on engine: 51,994
Sample date: 8/11/2013
Report date: 8/15/2013
Makeup oil added: 0
Aluminum 3/3
Chromium 0/0
Iron 10/10
Copper 3/2
Lead 0/0
Tin 1/0
Molybdenum 63/71
Nickel 1/0
Manganese 0/0
Silver 0/0
Titanium 0/0
Potassium 2/1
Boron 24/19
Silicon 18/19
Sodium 151/154
Calcium 1105/1130
Magnesium 590/615
Phosphorous 636/650
Zinc 752/765
Barium 0/1
SUS Viscosity @ 210* F = 59.7/XXX
cSt Viscosity @ 100* C = 10.1/10.12
Flashpoint in * F = 420/XXX
Oxidation= XXX/18
Nitration= XXX/14
Fuel % = Antifreeze % = ???/XXX
Water % = 0/0
Insolubles % = .3/.1
TBN = 2.0/3.02
My ex gf wrecked my old 4R and I found this one with 40,6XX mi on it. At 40,720 miles I changed the oil to M1 EP 5W-30 and installed a M1-209 filter since I still had a few OCI of this combo left, it had a carquest filter and an unknown oil in the sump when purchased. I have driven a lot more than usual during the 9 mo the oil was in service. I normally dont even get 10k mi in 12 mo but I racked up 11k in 9 mo on this interval. Driving conditions are everything under the sun: 48 mi hwy commute, several ski trips, usually a half dozen low marks on the dip stick.
The sodium worries me, but I check all the fluids religiously and coolant levels have not budged. Neither wear nor the oil seem to have felt the effects of antifreeze contamination, and there is no potassium present. So either it is a remnant of the previous fill (seems a bit high for this) or I have caught a small leak in its infancy. Im going to sample current fill without changing it at 5k miles and go from there. I had contemplated pushing this fill to 15k but decided to exercise some caution and am glad I did. I should have did a shorter run to get a cleaner baseline but it didnt work out that way.
Blackstone/OAI
XXX indicates was not tested by lab
Miles on oil: 11,274
Time on oil: 9 mo
Miles on engine: 51,994
Sample date: 8/11/2013
Report date: 8/15/2013
Makeup oil added: 0
Aluminum 3/3
Chromium 0/0
Iron 10/10
Copper 3/2
Lead 0/0
Tin 1/0
Molybdenum 63/71
Nickel 1/0
Manganese 0/0
Silver 0/0
Titanium 0/0
Potassium 2/1
Boron 24/19
Silicon 18/19
Sodium 151/154
Calcium 1105/1130
Magnesium 590/615
Phosphorous 636/650
Zinc 752/765
Barium 0/1
SUS Viscosity @ 210* F = 59.7/XXX
cSt Viscosity @ 100* C = 10.1/10.12
Flashpoint in * F = 420/XXX
Oxidation= XXX/18
Nitration= XXX/14
Fuel % = Antifreeze % = ???/XXX
Water % = 0/0
Insolubles % = .3/.1
TBN = 2.0/3.02