Product Tested

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Ace Hardware Corp.

Company and Product Information

Corporate Office:
Ace Hardware Corporation
Oak Brook, Illinois 60523


With more than 4,800 hardware stores locally owned and operated across the glabe, Ace Hardware is the largest retailer-owned hardware cooperative in the world. Ace and its subsidiaries currently operate 17 distribution centers in the U.S. and also have distribution capabilities in Shanghai, China; Panama City, Panama; and Dubai, United Arab Emirates. Its retailers' stores are located in all 50 states, the District of Columbia and approximately 60 countries.

Sold exclusively in Ace Hardware stores and home centers worldwide, each Ace Private Label product is stamped with a guarantee of its quality.


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.

ACE Motor Oil Super heavy duty diesel formulation SAE 15W40

Product: ACE Motor Oil
Viscosity grade: SAE 15W40
Labeled: API CI-4/SL

Marketed by: ACE Hardware Corp

Purchased at: Kankakee, IL

Date of purchase: 1-5-2015


Website(s): www.acehardware.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.

Note: The label on the product tested claims compliance with several API specifications but does not carry the official API Service Symbol, also known as the “Donut” symbol, to prove certification. Therefore one must rely solely on the word of the manufacturer.

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 ACE Hardware
TBN, mg KOH/g (ASTM D2896) 9.4
Viscosity @ 100ºC, cSt (ASTM D445) 12.5 to 16.3 14.4
Viscosity @40ºC, cSt (ASTM D445) 105.7
Viscosity Index (ASTM D2270) 139.0
Viscosity @-20ºC mPa s (cP) (ASTM D5293) 7,000 Max 5591
Volatility, mass % loss, 1 hr, @ 250ºC (ASTM D5800) 13 Max -c 8.1
ELEMENTAL ANALYSIS (click for test details) - a, b
Calcium 2272
Magnesium 270
Phosphorus, ppm 1,250 1213
Zinc, ppm 1328
Molybdenum,  ppm 2
Barium, ppm <1
Boron, ppm 8
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 <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.