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. This webpage provides an analysis on the brand detailed below.
The following are the test results for the sample examined.
GUARDOL ECT Premium Synthetic Blend SAE 15W-40, API CJ-4, CI-4 PLUS, CI-4, CH-4, SN |
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Test Results and Assessment:
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PHYSICAL TESTS (click test for details) | Standard | GUARDOL ECT |
TBN, mg KOH/g, (ASTM D2896) | 9.57 | |
Viscosity @ 100ºC, cSt, (ASTM D445) | 12.5 to 16.3 | 14.87 |
Viscosity @ 40ºC, cSt, ASTM D445 | 112.20 | |
Viscosity Index (ASTM D2270) | 137 | |
Viscosity @ -20ºC mPa s (cP) (ASTM D5293) | 7,000 Max | 6,228 |
Volatility, mass % loss, 1 hr, @ 250ºC (ASTM D5800) | 13 Max -c | 10.8 |
Calcium | 1,809 | |
Magnesium | 296 | |
Phosphorus, ppm | 1,250 | 1,122 |
Zinc, ppm | 1,212 | |
Molybdenum, ppm | <1 | |
Barium, ppm | <1 | |
Boron, ppm | 89 | |
Silicon, ppm | 4 | |
Potassium, ppm | <5 | |
Manganese, ppm | <1 | |
Titanium, ppm | 100 | |
Copper, ppm | <1 | |
Sodium, ppm | <5 | |
Vanadium, ppm | <1 | |
Contaminants | ||
Silver, ppm | <1 | |
Aluminum, ppm | 1 | |
Chromium, ppm | <1 | |
Iron, ppm | 2 | |
Nickel, ppm | <1 | |
Lead, ppm | <1 | |
Antimony, ppm | <1 | |
Tin, ppm | <1 | |
a- Standards, shown in yellow are established by API, SAE and others. b-Test Method for metal analysis is ASTM D5185. c - This specification is expressed to two significant figures, therefore results up to 13.5 are considered on specification.
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