From Walmart, I recently purchased engine oil produced by Green Earth Technologies: G-Oil SAE 5W-30 Green Bio-Based Full Synthetic Motor OIL API SM. It is unique in that it is made not from petroleum but rather from animal fat. Green Earth Technologies claims that its oil is “Not classified as hazardous to humans or dangerous to the environment.”
While I cannot verify Green Earth Technologies’ claims, I did submit a sample to WearCheck for VOA. I then compared the WearCheck results to another set of VOA results from the Petroleum Quality Institute of America (PQIA). PQIA’s VOA results can be found at:
http://www.pqiamerica.com/January2012A/January2012R2/goil.htm
Code:
G-OIL G-OIL
WEAR
CONTAMINANT PQIA CHECK
Silicon 4 6.5
Potassium 8 24
Sodium 10 5.3
Fuel (%) --
Glycol -- --
Water (%) --
Soot (%) -- --
Sulfation -- --
Nitration -- --
G-OIL G-OIL
OIL WEAR
CONDITION PQIA CHECK
Boron 215 358
Barium
Calcium 1966 3782
Magnesium 8 21
Molybdenum 74 113
Sodium 10 5.3
Phosphorus 676 1247
Sulfur 2695 5291
Zinc 762 1257
Visc@40C 54.9 55.78
Visc@100C 10.0 9.77
VI 172 161
Oxidation -- --
TAN -- 1.44
TBN 7.2 --
G-OIL G-OIL
WEAR
WEAR PQIA CHECK
PQ -- --
Iron
Nickel
Chromium
Titanium
Copper
Aluminum 2 3.7
Tin
Lead
The VOA results obtained by the PQIA and by WearCheck are similar in many respects. However, there are 4 parameters in which the WearCheck measurements vary greatly from that of the PQIA: calcium, phosphorus, sulfur and zinc. For each of these 4 items, WearCheck’s measurements were twice as high as those from the PQIA. Whether the differences are due to variations in oil samples or variations in analysis techniques remain to be determined.
While I cannot verify Green Earth Technologies’ claims, I did submit a sample to WearCheck for VOA. I then compared the WearCheck results to another set of VOA results from the Petroleum Quality Institute of America (PQIA). PQIA’s VOA results can be found at:
http://www.pqiamerica.com/January2012A/January2012R2/goil.htm
Code:
G-OIL G-OIL
WEAR
CONTAMINANT PQIA CHECK
Silicon 4 6.5
Potassium 8 24
Sodium 10 5.3
Fuel (%) --
Glycol -- --
Water (%) --
Soot (%) -- --
Sulfation -- --
Nitration -- --
G-OIL G-OIL
OIL WEAR
CONDITION PQIA CHECK
Boron 215 358
Barium
Calcium 1966 3782
Magnesium 8 21
Molybdenum 74 113
Sodium 10 5.3
Phosphorus 676 1247
Sulfur 2695 5291
Zinc 762 1257
Visc@40C 54.9 55.78
Visc@100C 10.0 9.77
VI 172 161
Oxidation -- --
TAN -- 1.44
TBN 7.2 --
G-OIL G-OIL
WEAR
WEAR PQIA CHECK
PQ -- --
Iron
Nickel
Chromium
Titanium
Copper
Aluminum 2 3.7
Tin
Lead
The VOA results obtained by the PQIA and by WearCheck are similar in many respects. However, there are 4 parameters in which the WearCheck measurements vary greatly from that of the PQIA: calcium, phosphorus, sulfur and zinc. For each of these 4 items, WearCheck’s measurements were twice as high as those from the PQIA. Whether the differences are due to variations in oil samples or variations in analysis techniques remain to be determined.