Gold Star SAE 10W-40, API SC/CC
Distributed by Gold Star Lubricants, Atlanta, GA
Purchased in: White Pond Shell, Elgin, SC
Date of purchase: 12/13/2011
The results of the tests conducted on this sample do not meet the requirements of an SAE 10W-40 Engine oil.
ADVISORY: The tests conducted on this sample show that it is an SAE 15W-40, not the SAE 10W-40 shown on the label. In addition, the silicon level is unusually high for a new oil and may be indicative of contamination.
API SC/CC is an obsolete specification that is not recommended for engines built after 1967. The label on this product fails to give adequate warning to consumers about its limited use.
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PETROLEUM QUALITY INSTITUTE OF AMERICA TEST PROGRAM
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 Test Results |
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| The ranges and averages shown in the table below are for
current specifications (API SN GF-5). See footnote "e" |
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| PHYSICAL TESTS | Standard/ranges-b | Average-e | |
| TBN, mg KOH/g, (ASTM D2896) | 6.1 to 8.3 | 7.2 | 4.6 |
| Viscosity @ 100ºC, cSt, (ASTM D445) | 9.3 to 12.5 | 10.5 | 12.7 |
| Viscosity @ 40ºC, cSt, ASTM D445 | 88.4 | ||
| Viscosity Index (ASTM D2270) | 141 | ||
| Viscosity @ -25ºC mPa s (cP) (ASTM D5293) | 7,000 Max | 5,775 | 9,781 |
| Volatility, mass % loss, 1 hr, @ 250ºC (ASTM D5800) | 15 Max | 14.2 | 7.9 |
| ELEMENTAL ANALYSIS-c | |||
| Additives | |||
| Nitrogen μg/g (ASTM D-5762) | 599 to 990 | 804.2 | 644.4 |
| Calcium | 1,570 to 2,460 | 2,051 | 1,058 |
| Magnesium, ppm | 6 to 46 | 12.3 | 103 |
| Phosphorus, ppm | 600 to 800 | 703 | 725 |
| Zinc, ppm | 766 to 868 | 791 | 537 |
| Molybdenum, ppm | <1 to 269 | 60 | 23 |
| Barium, ppm | <1 | <1 | 10 |
| Boron, ppm | <1 to 237 | 79 | 24 |
| Silicon, ppm-d | 3 to 9 | 5 | 22 |
| Potassium, ppm | 9 to 17 | 11 | 5 |
| Manganese, ppm | <1 | <1 | <1 |
| Titanium, ppm | <1 to 114 | 11 | <1 |
| Sulfur, ppm | 5,000 max | 2,785 | 5,010 |
| Copper, ppm | <1 | <1 | <1 |
| Sodium, ppm | 5 to 454 | 172 | 29 |
| Vanadium, ppm | <1 | <1 | <1 |
| Contaminants | |||
| Silver, ppm | <1 | <1 | <1 |
| Aluminum, ppm | <1 to 3 | 1 | <1 |
| Chromium, ppm | <1 | <1 | <1 |
| Iron, ppm | <1 to 1 | 1 | 2 |
| Nickel, ppm | <1 | <1 | <1 |
| Lead, ppm | <1 | <1 | <1 |
| Antimony, ppm | <1 | <1 | <1 |
| Tin, ppm | <1 | <1 | <1 |
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a- Click here for product label. b- Standards, shown in yellow are established by API, SAE and others. Ranges, shown in teal, represent the high and low data for the 13 major brands of API SN ILSAC GF-5 tested in September 2011. c-Test Method for metal analysis is ASTM ASTM D5185. d- Although silicon is used as an antifoam additive in lubricants, concentrations above 7ppm have been linked to contamination from abrasive material, e- Average of the 13 major brands of API SN ILSAC GF-5 tested in September 2011. |
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| Gold Star 10W-40, API SC/CC | |||||
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The American
Petroleum
Institute sets
forth a number
of laboratory
and engine tests
required to meet
an API SN ILSAC
GF-5
performance
specification.
Although
laboratory tests
alone cannot be
used to
establish if an
engine oil meets
API SN, they can
be used to
determine if it
doesn't.
The following is a comparison of the test results for the sample of Gold Star 10W-40 tested with the API SN ILSAC GF-5 requirements. |
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| Viscometrics | |||||
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The viscometrics do not meet the required targets for a 10W-40.
Click here for more on chart and Viscosity@100șC,cSt Click here for about chart and Viscosity @ -30șC
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| Volatility | Phosphorus | ||||
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| FRONT AND BACK LABELS FROM PRODUCT TESTED | |||||
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