Product Tested

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United Petroleum Company

Company and Product Information

Corporate Office:
United Petroleum Company
225 E. Germann Rd
Gilbert, AZ 85297

Website(s): www.Qlubricants.com

United Petroleum Company is a subsidiary of Calumet Specialty Products Partners LP.  Calumet processes crude oil and other feedstocks into customized lubricating oils, solvents and waxes used in consumer, industrial and automotive products; produces fuel products including gasoline, diesel and jet fuel; and provides oilfield services and products to customers throughout the United States.  Calumet is based in Indianapolis, Indiana and has thirteen manufacturing facilities.


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.

Quantum X-5 Max-Blend
Semi-Synthetic Motor Oil

Product: Quantum X-5 Max-Blend
Viscosity Grade: SAE 5W-30
Labeling: API SN/ILSAC GF-5

Distributed By: United Petroleum Company, Gilbert, AZ

Purchased at: Savage, MD

Date of purchase: 4-27-2016


Website(s): www.Qlubricants.com

Test Results and Assessment:

Whereas the phosphorus results for this sample do not meet the specification for API 1509, they are within the API Expanded Range of 540 to 880 parts per million. The "expanded range" applies standard industry practice to recognize ASTM test method reproducibility. The balance of the test results conducted on this sample meet the SAE J300 specifications for the SAE Viscosity Grade listed on the product label, and are consistent with the listed API Service Category.

bottle icon Physical Properties pass
Elemental Analysis pass
Labeling warning

Note: 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.

PHYSICAL TESTS (click for test details) - a Standard Quantum
TBN, mg KOH/g (ASTM D2896) 7.32
Viscosity @ 100ºC, cSt (ASTM D445) 9.3 to <12.5 9.71
Viscosity @40ºC, cSt (ASTM D445) 56.10
Viscosity Index (ASTM D2270) 159
Viscosity @-30ºC mPa s (cP) (ASTM D5293) 6,600 Max 5,031
Volatility, mass % loss, 1 hr, @ 250ºC (ASTM D5800) 15 Max -c 12.3
ELEMENTAL ANALYSIS (click for test details) - a, b
Calcium 2,186
Magnesium 12
Phosphorus, ppm 600 to 800 860 (Recheck 859)
Zinc, ppm 910
Molybdenum,  ppm 46
Barium, ppm <1
Boron, ppm 215
Silicon, ppm 5
Potassium, ppm <5
Manganese, ppm <1
Titanium, ppm <1
Copper, ppm <1
Sodium, ppm <5
Vanadium, ppm <1
Silver, ppm <1
Aluminum, ppm 2
Chromium, ppm <1
Iron, ppm <1
Nickel, ppm <1
Lead, ppm <1
Antimony, ppm <1
Tin, ppm <1
  1. Standards, shown in yellow are established by API, SAE and others.
  2. Test Method for metal analysis is ASTM D5185.
  3. This specification is expressed to two significant figures, therefore results up to 15.5 are considered on specification.