Test was performed by Predictive Maintenance Services. www.AVLube.com
I should note that roughly 8000 miles into my 10k mile OCI I had MAF problems and water contaminated fuel problems that may have damaged an injector. I'm smoking at take off more often than not and my fuel mileage has fallen big time. This is probably why there was an increase in soot levels and in Iron levels.
I should also note that over the summer I pulled a 5 x 10 trailer and motorcycle with an estimated weight of about 900 lbs. I did this once a week, almost every week during the summer. Driving between 200 and 300 miles per instance.
OEM oil filter and OEM air filter changed at time of oil change.
First number was using Amsoil 15w-40, second number was using Amsoil 5w-40.
9921 miles on oil and 99,887 miles on engine / 10,068 miles on oil and 109,955 miles on engine.
Iron = 49 / 71
Chromium = 3 / 4
Lead = 0 / 0
Copper = 6 / 7
Tin = 1 / 0
Aluminum = 9 / 10
Nickel = 10 / 9
Silver = 0 / 0
Silicon = 4 / 6
Boron = 1 / 1
Sodium = 7 / 7
Potassium = 3 / 5
Magnesium = 25 / 24
Calcium = 3475 / 3259
Phosphorus = 1623 / 1488
Zinc = 1726 / 1547
Molybdenum = 0 / 0
Fuel = A / A
Water = < 0.1 / < 0.1
Glycol = N / N
Viscosity @ 100°C, cSt = 15.7 / 17.2
Oxidation = 61.00 / 66.00
Nitration = 12.00 / 12.00
Soot = 0.3 / 0.7
TBN = 8.43 / 8.07
Comment - Found soot level to be slightly above expected but only slightly. All wear metals are under limits. However, the iron has increased from 49 to 71 compared to the last sample. This may be do to type of usage and/or from the soot. Would suggest you inspect the air filter element for signs that is doing its job but may be close to change out.
I'll have another sample analysed when I change again in another 10k miles and see if the Iron and Soot numbers improve. I'm hoping to eventually get 20k miles out of the oil, changing the oil filter every 10k miles.
I should note that roughly 8000 miles into my 10k mile OCI I had MAF problems and water contaminated fuel problems that may have damaged an injector. I'm smoking at take off more often than not and my fuel mileage has fallen big time. This is probably why there was an increase in soot levels and in Iron levels.
I should also note that over the summer I pulled a 5 x 10 trailer and motorcycle with an estimated weight of about 900 lbs. I did this once a week, almost every week during the summer. Driving between 200 and 300 miles per instance.
OEM oil filter and OEM air filter changed at time of oil change.
First number was using Amsoil 15w-40, second number was using Amsoil 5w-40.
9921 miles on oil and 99,887 miles on engine / 10,068 miles on oil and 109,955 miles on engine.
Iron = 49 / 71
Chromium = 3 / 4
Lead = 0 / 0
Copper = 6 / 7
Tin = 1 / 0
Aluminum = 9 / 10
Nickel = 10 / 9
Silver = 0 / 0
Silicon = 4 / 6
Boron = 1 / 1
Sodium = 7 / 7
Potassium = 3 / 5
Magnesium = 25 / 24
Calcium = 3475 / 3259
Phosphorus = 1623 / 1488
Zinc = 1726 / 1547
Molybdenum = 0 / 0
Fuel = A / A
Water = < 0.1 / < 0.1
Glycol = N / N
Viscosity @ 100°C, cSt = 15.7 / 17.2
Oxidation = 61.00 / 66.00
Nitration = 12.00 / 12.00
Soot = 0.3 / 0.7
TBN = 8.43 / 8.07
Comment - Found soot level to be slightly above expected but only slightly. All wear metals are under limits. However, the iron has increased from 49 to 71 compared to the last sample. This may be do to type of usage and/or from the soot. Would suggest you inspect the air filter element for signs that is doing its job but may be close to change out.
I'll have another sample analysed when I change again in another 10k miles and see if the Iron and Soot numbers improve. I'm hoping to eventually get 20k miles out of the oil, changing the oil filter every 10k miles.
