Petroleum Quality Institute of America

The Petroleum Quality Institute of America (PQIA) is an independent resource for information and insights on the quality and performance of lubricants in the marketplace.  Our mission is to serve the consumer of lubricants by reporting on the quality and integrity of lubricants in the marketplace.

 

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O'Reilly Auto Parts Motor Oil 5W-30 API SM ILSAC GF-4

 

 

 

 

 

Purchased in: Laurens, SC

Date of purchase: 6-9-2010

 

NOTE: PQIA tested a sample of O'Reilly 5W-30 purchased on July 14, 2011. Test results for this sample are consistent with the labeled specifications. Click here for July 14, 2011 test results.  

 

Advisory: The sample tested does not meet the NOACK Volatility requirements of an API SM ILSAC GF-4 5W-30 Engine Oil. The NOACK volatility does however, fall within the API acceptable "Expanded Range" of 16.62% for an API SM ILSAC GF-4 engine oil

 

PETROLEUM QUALITY INSTITUTE OF AMERICA

TEST PROGRAM
PHYSICAL TESTS Standard/ranges-b Average-e

O'Reilly

 5W-30
 TBN, mg KOH/g, (ASTM D2896) 7.4 to 9.0 8.0 6.6
 Viscosity @ 100ºC, cSt, (ASTM D445) 9.3 to 12.5 10.39 10.07
 Viscosity @ 40ºC, cSt, ASTM D445 55.0 to 82.0 60.48 59.73
 Viscosity Index (ASTM D2270) 156 to 167 163 157
 Viscosity @ -30ºC mPa s (cP) (ASTM D5293) 6,600 Max 5,793 5,930
 Volatility, mass % loss, 1 hr, @ 250ºC (ASTM D5800) 15 Max 13.5 15.6-f
ELEMENTAL ANALYSIS-c      
Additives
    Nitrogen μg/g (ASTM D-5762) 720 to 1,000 860 700
    Calcium  1,648 to 2,301 2,043 1,546
    Magnesium, ppm  6 to 43 11 6
    Phosphorus,  ppm 600 to 800 772 705
    Zinc, ppm  789 to 887 851 780
    Molybdenum,  ppm  <1 to 226 93 <1
    Barium, ppm  <1 <1 <1
Additive and/or other
    Boron,  ppm  <1 to 246 84 <1
    Silicon,  ppm-d  4 to 8 5 3
    Potassium, ppm  <1  <1 <1
    Manganese, ppm  <1 to 8 1 <1
    Titanium, ppm  <1 <1 <1
    Sulfur, ppm  5,000 max 3,021 2,148
    Copper, ppm  <1  <1 <1
    Sodium, ppm  <1 to 467 82 406
    Vanadium, ppm  <1 <1 <1
Contaminants
    Silver, ppm  <1 <1 <1
    Aluminum, ppm  <1 to 2 <1 <1
    Chromium, ppm  <1 <1 <1
    Iron, ppm  <1 to 1 1 1
    Nickel, ppm  <1 <1 <1
    Lead, ppm  <1 to 1 <1 1
    Antimony, ppm  <1 <1 <1
    Tin, ppm  4 to 5 5 4

a- Click here for product label.

b- Standards, shown in orange, are established by API, SAE and others. Ranges, shown in teal, represent the high and low data for the majors shown.

c-Test Method for metal analysis is ASTM ASTM D5185.

d- Although silicon is used as an antifoam additive in lubricants, concentrations above 7ppm have been linked to contamination from abrasive material,

e- Average of the 10 major brands tested. Click here for brands tested.

f- Recheck came back at 15.8%.

     
O'Reilly Motor Oil 5W-30
The American Petroleum Institute sets forth a number of laboratory and engine tests required to meet an API SM performance specification. Although laboratory tests alone cannot be used to establish if an engine oil meets API SM, they can be used to determine if it doesn't.

What follows is a comparison of the test results for O'Reilly Motor Oil 5W-30 as compared to the API SM ILSAC GF-4 requirements.

The API limits for each test are shown by the yellow bars. The test result for O'Reilly Motor Oil 5W-30 are illustrated by the horizontal line.

 
Viscometrics

The viscosity of O'Reilly Motor Oil 5W-30 meets the required target for a 5W-30 API SM (SAE J300 specification) at 100ºC.

   
Volatility Phosphorus

The volatility of O'Reilly Motor Oil 5W-30 does not meet the parameters required for an API SM ILSAC GF-4 designation. The NOACK volatility does, however, fall within the API acceptable extended range for the product.

 

 

 

 The phosphorus content in O'Reilly Motor Oil 5W-30 meets the requirements for an API SM ILSAC GF-4 designation.

 

 

 

  
   
 

  
FRONT AND BACK LABELS FROM PRODUCT 
 

 

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