The Petroleum Quality Institute of America
The independent resource for information and insights on the quality and integrity of lubricants in the marketplace.
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May, 2013 - Test Results DIESEL ENGINE OIL 15W-40
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Standards, shown in yellow are established by API, SAE and others. Ranges, shown in green, represent the high and low data for the brands reported in this sample set. |
CITGARD 500 | NAPA | MileMaster | Traveller | Sunoco Super C | |
| PHYSICAL TESTS (click test for details) |
Standards/ Range-a |
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| TBN, mg KOH/g, (ASTM D2896) |
7.39 to 9.75 |
9.40 | 8.58 | 9.75 | 8.25 | 8.5 |
| Viscosity @ 100ºC, cSt, (ASTM D445) | 12.5 to <16.3 | 14.8 | 15.4 | 14.7 | 14.9 | 15.1 |
| Viscosity @ 40ºC, cSt, (ASTM D445) | 105 to 129 | 105 | 115 | 109 | 109 | 114 |
| Viscosity Index (ASTM D2270) | 130 to 146 | 146 | 141 | 139 | 142 | 138 |
| Viscosity @ -20ºC mPa s (cP) (ASTM D5293) | 7,000 Max | 5,985 | 6,241 | 6,275 | 5,597 | 6,294 |
| Additives | ||||||
| Calcium, ppm | 1,184 to 2,603 | 2,522 | 1,218 | 2,603 | 1,191 | 1,184 |
| Magnesium, ppm | 8 to 911 | 336 | 891 | 338 | 842 | 848 |
| Phosphorus, ppm | 877 to 1,312 | 1,120 | 1,155 | 1,192 | 1,053 | 1,077 |
| Zinc, ppm | 1,012 to 1,490 | 1,243 | 1,306 | 1,346 | 1,226 | 1,227 |
| Molybdenum, ppm | 0 to 117 | 4 | <1 | 1 | 44 | <1 |
| Barium,ppm | <1 | <1 | <1 | <1 | <1 | <1 |
| Additive and/or other | ||||||
| Boron, ppm | 1 to 679 | 6 | <1 | 9 | 2 | <1 |
| Silicon, ppm | 4 to 8 | 3 | 8 | 4 | 8 | 6 |
| Potassium, ppm | 2 to 5 | <1 | 2 | <1 | 1 | <1 |
| Manganese, ppm | <1 | <1 | <1 | <1 | <1 | <1 |
| Titanium, ppm | <1 | <1 | <1 | <1 | <1 | <1 |
| Copper, ppm | <1 | <1 | <1 | <1 | <1 | <1 |
| Sodium, ppm | 1 to 7 | <1 | 5 | 1 | 7 | 4 |
| Vanadium, ppm | <1 | <1 | <1 | <1 | <1 | <1 |
| Contaminants | ||||||
| Silver, ppm | <1 | <1 | <1 | <1 | <1 | <1 |
| Aluminum, ppm | 1 | <1 | <1 | <1 | 3 | 2 |
| Chromium, ppm | <1 | <1 | <1 | <1 | <1 | <1 |
| Iron, ppm | <1 | <1 | 1 | 1 | <1 | <1 |
| Nickel, ppm | <1 | <1 | <1 | <1 | <1 | <1 |
| Lead, ppm | <1 | <1 | <1 | <1 | <1 | <1 |
| Antimony, ppm | <1 | <1 | <1 | <1 | <1 | <1 |
| Tin, ppm | <1 | <1 | <1 | <1 | <1 | <1 |
a- Standards, shown in black are established by API, SAE and others, ranges shown in green, represent the high and low data for the brands reported in the first two sample sets examined in 2013 .
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