I just got the results of my oil analysis on my 2004 Chevy Silverado 5.3L from Oil Analyzers Inc. Engine internals are completely stock with 227k miles. At the last oil change I swapped from Amsoil OE 5w30 to Signature Series 0w30 and installed a partial bypass oil filter kit. The oil in question had 12053 miles on it. My truck seeps some oil from the seals so during that 12k miles I had to top it off with a total of 3 additional quarts. My typical commute is ~10 miles daily but there are a fair number 90+ mile trips on this oil as well.
Comments:
Flagged data does not indicate an immediate need for maintenance action. Continue to observe the trend and monitor
equipment and fluid conditions. Base Number is MODERATELY LOW. As Base Number depletes, the ability to neutralize acids is
diminished. Boron is slightly low for this lubricant. Boron levels may naturally decline with use so this is not a cause for
concern.
Code
Iron 13
Chromium 0
Nickel 1
Aluminum 1
Copper 3
Lead 2
Tin 0
Cadmium 0
Silver 0
Vanadium 0
Silicon 16
Sodium 27
Potassium 13
Titanium 0
Molybdenum 208
Antimony 0
Manganese 0
Lithium 0
Boron 66
Magnesium 926
Calcium 1447
Barium 0
Phosphorus 745
Zinc 845
Fuel Dilution
Soot
Water
Viscosity 100° 11.2
Base Number 2.7
Oxidation 52
Nitration 13
I am interested if anybody has done a VOA on this oil since the last reformulation? I have searched for that info on this forum and others and the latest I can come up with is from 2011.
Comments:
Flagged data does not indicate an immediate need for maintenance action. Continue to observe the trend and monitor
equipment and fluid conditions. Base Number is MODERATELY LOW. As Base Number depletes, the ability to neutralize acids is
diminished. Boron is slightly low for this lubricant. Boron levels may naturally decline with use so this is not a cause for
concern.
Code
Iron 13
Chromium 0
Nickel 1
Aluminum 1
Copper 3
Lead 2
Tin 0
Cadmium 0
Silver 0
Vanadium 0
Silicon 16
Sodium 27
Potassium 13
Titanium 0
Molybdenum 208
Antimony 0
Manganese 0
Lithium 0
Boron 66
Magnesium 926
Calcium 1447
Barium 0
Phosphorus 745
Zinc 845
Fuel Dilution
Soot
Water
Viscosity 100° 11.2
Base Number 2.7
Oxidation 52
Nitration 13
I am interested if anybody has done a VOA on this oil since the last reformulation? I have searched for that info on this forum and others and the latest I can come up with is from 2011.