Product Tested

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Tractor Supply Company

Company and Product Information

Corporate Office:
Tractor Supply Company
5401 Virginia Way
Brentwood, TN 37027


Tractor Supply Company is the largest operator of rural lifestyle retail stores in the United States. The company operates over 1,400 retail stores in 49 states, employs more than 21,000 team members and is headquartered in Brentwood, Tenn. The company was founded in 1938 as a mail order catalog business offering tractor parts to America's family farmers. Today Tractor Supply is a leading edge retailer with annual revenues of approximately $5.7 billion.


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.

SAE 15W-40
Premium All Fleet Diesel Engine Oil

Product: Traveller
Viscosity Grade: SAE 15W-40
Labeling: API CJ-4/SM

Marketed by: Tractor Supply Company

Purchased at: Tractor Supply, Richmond, IN

Date of purchase: 2/5/2015


Website(s): www.TractorSupply.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 Traveller
TBN, mg KOH/g (ASTM D2896) 9.6
Viscosity @ 100ºC, cSt (ASTM D445) 12.5 to 16.3 15.3
Viscosity @40ºC, cSt (ASTM D445) 113.6
Viscosity Index (ASTM D2270) 141.0
Viscosity @-20ºC mPa s (cP) (ASTM D5293) 7,000 Max 5449
Volatility, mass % loss, 1 hr, @ 250ÂșC (ASTM D5800) 13 Max -c 12.9
ELEMENTAL ANALYSIS (click for test details) - a, b
Calcium 1177
Magnesium 861
Phosphorus, ppm 1,250 1129
Zinc, ppm 1244
Molybdenum,  ppm 45
Barium, ppm <1 
Boron, ppm 1
Silicon, ppm 7
Potassium, ppm <5
Manganese, ppm <1
Titanium, ppm <1 
Copper, ppm <1 
Sodium, ppm 6
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.