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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CoGo's Premium 10W30 Motor Oil SM

CoGo's, manufactured by Pinnacle Oil, Indianapolis, IN.

 

Purchased at: CoGo's Emlenton, PA

Date of purchase: 7-16-2011

 

 

 

 

All tests conducted on this sample meet the specifications for API SM and ILSAC GF-4 10W-30 Engine oil.

 

It should be noted that although test results are consistent with an API SM Service Classification and ILSAC GF-4, the product label does not display any API certification marks for these specifications.

 

 

 

 

 

PETROLEUM QUALITY INSTITUTE OF AMERICA

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

CoGo's
 TBN, mg KOH/g, (ASTM D2896)   7.3 8.7
 Viscosity @ 100ºC, cSt, (ASTM D445) 9.3 to <12.5 10.86 10.64
 Viscosity @ 40ºC, cSt, ASTM D445   69.93 70.97
 Viscosity Index (ASTM D2270) 156 to 167 146 138
 Viscosity @ -25ºC mPa s (cP) (ASTM D5293) 7,000 Max 5,093 5,850
 Volatility, mass % loss, 1 hr, @ 250ºC (ASTM D5800) 15 Max 11.6 13.7
ELEMENTAL ANALYSIS-c      
Additives
    Nitrogen μg/g (ASTM D-5762)   837 800
    Calcium   1,920 2,426
    Magnesium, ppm   10 10
    Phosphorus,  ppm 600 to 800 775 765
    Zinc, ppm   853 861
    Molybdenum,  ppm   16 40
    Barium, ppm   <1 0
Additive and/or other
    Boron,  ppm   107 0
    Silicon,  ppm-d   3 2
    Potassium, ppm   <1 0
    Manganese, ppm   <1 0
    Titanium, ppm   <1 0
    Sulfur, ppm  5,000 max 3,227 3,016
    Copper, ppm  <1  <1 0
    Sodium, ppm  <1 to 467 143 0
    Vanadium, ppm  <1 <1 0
Contaminants
    Silver, ppm  <1 <1 0
    Aluminum, ppm  <1 to 2 <1 0
    Chromium, ppm  <1 <1 0
    Iron, ppm  <1 to 1 <1 0
    Nickel, ppm  <1 <1 0
    Lead, ppm  <1 to 1 <1 0
    Antimony, ppm  <1 <1 0
    Tin, ppm  4 to 5 4 0

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 ranges for the majors 10W-30.

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 3 private label API SM  brands tested. Click here for brands tested.
     
CoGo's Premium 10W-30 10W-30 Motor Oil
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 CoGo's Premium 10W-30 Motor Oil 10W-30 as compared to the API SM ILSAC GF-4 requirements.

The API SM and ILSAC GF-4 limits for each test are shown by the green bars. The test result for CoGo's Premium 10W-30 10W-30 are illustrated by the horizontal line.

 
Viscometrics
The viscometrics of CoGo's Premium 10W-30 meets the required targets for a 10W-30 API SM (SAE J300 specification).
 

 

 

   
Volatility Phosphorus
The volatility of CoGo's Premium 10W-30 10W-30 is within the parameters required to meet an API SM GF-4 Service Category.

 

The phosphorus content in CoGo's Premium 10W-30 10W-30 is within the parameters required to meet an API SM GF-4 Service Category.

 

  
   
 

  
FRONT AND BACK LABELS FROM PRODUCT TESTED