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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U.S. Economy 5-30 Motor Oil "Deigned for use in older model automobiles requiring SA specifications and where economy is a major consideration."

 

 

 

 

 

 

Purchased in: Lugoff, SC

Date of purchase: 6-8-2010

 

Advisory: Test indicate product is not an API SA engine oil. Furthermore,  whereas the product is labeled "5-30," it is not an SAE 5W-30 engine oil.

 

PETROLEUM QUALITY INSTITUTE OF AMERICA

TEST PROGRAM

PHYSICAL TESTS Standard/ranges-b Average-e

U.S. Economy

 TBN, mg KOH/g, (ASTM D2896) 7.4 to 9.0 8.0 12.3
 Viscosity @ 100ºC, cSt, (ASTM D445) 9.3 to 12.5 10.39 11.66
 Viscosity @ 40ºC, cSt, ASTM D445 55.0 to 82.0 60.48 85.57
 Viscosity Index (ASTM D2270) 156 to 167 163 129
 Viscosity @ -30ºC mPa s (cP) (ASTM D5293) 6,600 Max 5,793 >25,000
 Volatility, mass % loss, 1 hr, @ 250ºC (ASTM D5800) 15 Max 13.5 13.3
ELEMENTAL ANALYSIS-c      
Additives
    Nitrogen μg/g (ASTM D-5762) 720 to 1,000 860 1,000
    Calcium  1,648 to 2,301 2,043 3,081
    Magnesium, ppm  6 to 43 11 142
    Phosphorus,  ppm 600 to 800 772 911
    Zinc, ppm  789 to 887 851 1,259
    Molybdenum,  ppm  <1 to 226 93 93
    Barium, ppm  <1 <1 1
Additive and/or other
    Boron,  ppm  <1 to 246 84 27
    Silicon,  ppm-d  4 to 8 5 9
    Potassium, ppm  <1  <1 <1
    Manganese, ppm  <1 to 8 1 <1
    Titanium, ppm  <1 <1 <1
    Sulfur, ppm  5,000 max 3,021 8,059
    Copper, ppm  <1  <1 1
    Sodium, ppm  <1 to 467 82 <1
    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 6
    Nickel, ppm  <1 <1 <1
    Lead, ppm  <1 to 1 <1 1
    Antimony, ppm  <1 <1 <1
    Tin, ppm  4 to 5 5 5

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.

     
U.S. Economy 5-30
API SA Engine oils typically contain no additives. It is important to note that test results for the sample tested of U.S. Economy 5-30 Economy Motor Oil shows a high level of additives. Such additive levels would not be found in an API SA engine oil. Rather than being representative of an API SA engine oil, the sample tested appears to more closely reflect some of the characteristics found in a heavy duty diesel engine oil.

Furthermore, whereas the product is labeled "5-30," test results show this product is not an SAE 5W-30 Engine oil.

Other concerns include the products  high level of phosphorus and sulfur.    

 

 
Viscometrics

The viscometrics of U.S. Economy 5-30 does not meet the requirements for a 5W-30 (SAE J300 specification).

 

 
FRONT AND BACK LABELS FROM PRODUCT TESTED
 

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