Here is the oil sample analysis for one of my customers. He has a 97 3500 with 650,939 miles on it. He has never has any engine work done and has always used Rotella 15w40 and stratapore filters that he bought from me. Let me know what you guys think. I believe this is a testament to good maintenance. He typically changes oil anywhere from 6000 to 8000 miles depending on how busy he's been.
miles on unit 650,939
miles on oil 6,545
Wear Metals (PPM)
Copper 1
Iron 6
Chromium 1
Aluminum 1
Lead 1
Additives (PPM)
Molybdenum 1
Phosphorus 749
Zinc 841
Magnesium 7
Calcium 2377
Contaminants
% Antifreeze . 0
Fuel Dilution 0
% H2O . 0
Silicone PPM 2
Oil Properties
Viscosity CST 16. 42
Sulfer 12%
Oxidation 3%
Nitration 2%
Soot Value 0
Let me know what you guys think.
miles on unit 650,939
miles on oil 6,545
Wear Metals (PPM)
Copper 1
Iron 6
Chromium 1
Aluminum 1
Lead 1
Additives (PPM)
Molybdenum 1
Phosphorus 749
Zinc 841
Magnesium 7
Calcium 2377
Contaminants
% Antifreeze . 0
Fuel Dilution 0
% H2O . 0
Silicone PPM 2
Oil Properties
Viscosity CST 16. 42
Sulfer 12%
Oxidation 3%
Nitration 2%
Soot Value 0
Let me know what you guys think.