Product Tested

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CHS Inc.

Company and Product Information

Corporate Office:
5500 Cenex Dr.
Inver Grove Heights, MN

Website(s): www.cenex.com

CHS Inc. is a leading global agribusiness owned by farmers, ranchers and cooperatives across the United States. Diversified in energy, grains and foods, CHS is committed to helping its customers, farmer-owners and other stakeholders grow their businesses through its domestic and global operations. CHS, a Fortune 100 company, supplies energy, crop nutrients, grain marketing services, animal feed, food and food ingredients, along with business solutions including insurance, financial and risk management services. The company operates petroleum refineries/pipelines and manufactures, markets and distributes Cenex® brand refined fuels, lubricants, propane and renewable energy products.
For more information see: (www.chsinc.com)


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.

CENEX Auto Gold SAE 10W-30
Synthetic Blend Gasoline Engine Oil

Product: CENEX Auto Gold
Viscosity Grade: SAE 10W-30
Labeling: API SN/ ILSAC GF-5

Distributed by: CHS Inc., St. Paul, MN

Purchased at: Omaha, NE

Date of purchase: 4/28/2015


Website(s): www.cenex.com

Test Results and Assessment:

The results of the tests 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 Categories.


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 CENEX Auto Gold
TBN, mg KOH/g (ASTM D2896) 8.1
Viscosity @ 100ºC, cSt (ASTM D445) 9.3 to <12.5 10.6
Viscosity @40ºC, cSt (ASTM D445) 68.4
Viscosity Index (ASTM D2270) 144
Viscosity @-25ºC mPa s (cP) (ASTM D5293) 7,000 Max 5308
Volatility, mass % loss, 1 hr, @ 250ºC (ASTM D5800) 15 Max -c 14.0
ELEMENTAL ANALYSIS (click for test details) - a, b
Calcium 2422
Magnesium 14
Phosphorus, ppm 600 to 800 754
Zinc, ppm 826
Molybdenum,  ppm 42
Barium, ppm <1
Boron, ppm 2
Silicon, ppm 4
Potassium, ppm <5
Manganese, ppm <1
Titanium, ppm <1
Copper, ppm <1
Sodium, ppm <5
Vanadium, ppm <1
Silver, ppm <1
Aluminum, ppm <1
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.