PETROLEUM QUALITY INSTITUTE OF AMERICA TEST PROGRAM
The Petroleum Quality Institute of America (PQIA) is an independent resource for information and insights on the quality of lubricants in the marketplace. Our mission is to serve the consumer of lubricants by randomly sampling and independently testing lubricants taken from the field. Test results are posted along with the brand names on the PQIA website. Although laboratory tests alone cannot be used to establish if engine oil meets an API Service Category, they can be used to determine if it doesn't.
| NAPA High Mileage, API SN, ILSAC GF-5, SAE 10W-30 motor oil. | |
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NAPA High Mileage, API SN/GF-5, SAE 10W-30 motor oil Manufactured for NAPA Distribution Centers by Ashland, Inc. Covington, KY Purchased at: NAPA Auto Parts, South Plainfield, NJ Date of purchase: 8/15/2014
The results of the tests conducted on this sample meet the requirements of an API SN, ILSAC GF-5, SAE 10W-30 motor oil.
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| PHYSICAL TESTS (click test for details) | Standard | NAPA High Mileage | |
| TBN, mg KOH/g, (ASTM D2896) | 7.27 | ||
| Viscosity @ 100ºC, cSt, (ASTM D445) | 9.3 to 12.5 | 10.75 | |
| Viscosity @ 40ºC, cSt, ASTM D445 | 71.07 | ||
| Viscosity Index (ASTM D2270) | 140 | ||
| Viscosity @ -25ºC mPa s (cP) (ASTM D5293) | 7,000 Max | 5,772 | |
| Volatility, mass % loss, 1 hr, @ 250ºC (ASTM D5800) | 15 Max -c | 13.4 | |
| ELEMENTAL ANALYSIS-b | |||
| Additives | |||
| Calcium | 1,644 | ||
| Magnesium | 10 | ||
| Phosphorus, ppm | 600 to 800 | 744 | |
| Zinc, ppm | 805 | ||
| Molybdenum, ppm | <1 | ||
| Barium, ppm | <1 | ||
| Boron, ppm | <1 | ||
| Silicon, ppm | 4 | ||
| Potassium, ppm | <5 | ||
| Manganese, ppm | <1 | ||
| Titanium, ppm | <1 | ||
| Copper, ppm | <1 | ||
| Sodium, ppm | 455 | ||
| Vanadium, ppm | <1 | ||
| Contaminants | |||
| Silver, ppm | <1 | ||
| Aluminum, ppm | <1 | ||
| Chromium, ppm | <1 | ||
| Iron, ppm | 1 | ||
| Nickel, ppm | <1 | ||
| Lead, ppm | <1 | ||
| Antimony, ppm | <1 | ||
| Tin, ppm | <1 | ||
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a- Standards, shown in yellow are established by API, SAE and others. b-Test Method for metal analysis is ASTM ASTM D5185. c - This specification is expressed to two significant figures, therefore results up to 15.5 are considered on specification.
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