Gulf Advanced Fuel Efficient Motor Oil 5W-30 API SM ILSAC GF-4
Packaged for Gulf by the American Refining Group
Purchased in: Gulf Mart, Delaware Water Gap, PA
Date of purchase: January 3, 2011
All tests conducted on this sample meet the specifications for API SM and ILSAC GF-4 5W-30 Engine oil.
PETROLEUM QUALITY INSTITUTE OF AMERICA TEST PROGRAM |
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PHYSICAL TESTS | Standard/ranges-b | Average-e |
Gulf Motor Oil 5W-30 |
TBN, mg KOH/g, (ASTM D2896) | 7.4 to 9.0 | 8.0 | 7.7 |
Viscosity @ 100ºC, cSt, (ASTM D445) | 9.3 to 12.5 | 10.39 | 10.56 |
Viscosity @ 40ºC, cSt, ASTM D445 | 55.0 to 82.0 | 60.48 | 62.22 |
Viscosity Index (ASTM D2270) | 156 to 167 | 163 | 146 |
Viscosity @ -30ºC mPa s (cP) (ASTM D5293) | 6,600 Max | 5,793 | 5,720 |
Volatility, mass % loss, 1 hr, @ 250ºC (ASTM D5800) | 15 Max | 13.5 |
15.1 See footnote "f" |
ELEMENTAL ANALYSIS-c | |||
Additives | |||
Nitrogen μg/g (ASTM D-5762) | 720 to 1,000 | 860 | 840 |
Calcium | 1,648 to 2,301 | 2,043 | 1,699 |
Magnesium, ppm | 6 to 43 | 11 | 11 |
Phosphorus, ppm | 600 to 800 | 772 | 800 |
Zinc, ppm | 789 to 887 | 851 | 880 |
Molybdenum, ppm | <1 to 226 | 93 | 0 |
Barium, ppm | <1 | <1 | 0 |
Boron, ppm | <1 to 246 | 84 | 0 |
Silicon, ppm-d | 4 to 8 | 5 | 0 |
Potassium, ppm | <1 | <1 | 1 |
Manganese, ppm | <1 to 8 | 1 | 0 |
Titanium, ppm | <1 | <1 | 0 |
Sulfur, ppm | 5,000 max | 3,021 | 2,366 |
Copper, ppm | <1 | <1 | 0 |
Sodium, ppm | <1 to 467 | 82 | 468 |
Vanadium, ppm | <1 | <1 | 0 |
Contaminants | |||
Silver, ppm | <1 | <1 | 0 |
Aluminum, ppm | <1 to 2 | <1 | 0 |
Chromium, ppm | <1 | <1 | 0 |
Iron, ppm | <1 to 1 | 1 | 1 |
Nickel, ppm | <1 | <1 | 0 |
Lead, ppm | <1 to 1 | <1 | 0 |
Antimony, ppm | <1 | <1 | 0 |
Tin, ppm | 4 to 5 | 5 | 2 |
a- Click here for product label. b- Standards, shown in orange, are established by API, SAE and others. Ranges, shown in teal, represent the high and low data for the majors shown. 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 10 major brands tested. Click here for brands tested. f- The specification of 15 max is expressed in two significant figures and therefore this result meets specification. |