The standard below are for the latest specification (API SN GF-5), and the ranges and averages are based on the 13 major brands of API SN ILSAC GF-5 tested in September 2011. Click here for more on API Service Categories.  

May 2012

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  API SN SERVICE CLASSIFICATION   API SL          

Test Results for 10W-40 Motor Oils

     
  CITGO Supergard MAG1 Road-Tech Sheetz Premium   Giant Petroleum          
PHYSICAL TESTS (click test for details)
Standards/ranges-a
                     
   TBN, mg KOH/g, (ASTM D2896)
6.1 to 8.3
8.3 7.1 8.5 8.5   8.0  

   Viscosity @ 100șC, cSt, (ASTM D445)

12.5 to 16.3
14.0 14.8 14.6 14.3   14.5          
   Viscosity @ 40șC, cSt, (ASTM D445)
90 to 107
90.2 101.9 96.1 99.7   96.5          
   Viscosity Index (ASTM D2270)

141 to 159

159 151 157 148   156  
   Viscosity @ -25șC mPa s (cP) (ASTM D5293)
7,000 Max
5,244 5,934 5,140 6,739   4,797  
   NOACK volatility, mass % loss, 1 hr, @ 250șC (ASTM D5800)
15 Max
14.6 10.8 12.1 11.9   12.3          
Additives                      
    Nitrogen μg/g (ASTM D-5762)

599 to 990

779.2 675.0 723.0 723.8   570.6          
    Calcium, ppm
 1,570 to 2,460
2,355 1,762 2,390 2,359 1,857
    Magnesium, ppm
 6 to 46
11 10 10 10 9
    Phosphorus ,ppm
600 to 800
709 751 715 700 878
    Zinc, ppm

 766 to 868

837 872 853 845 1,037
    Molybdenum,  ppm

 <1 to 269

41 <1 43 44   55          
    Barium, ppm

 <1

<1 <1 <1 <1   <1          
Additive and/or other                      
    Boron,  ppm

 <1 to 237

3 2 4 2 4
    Silicon,  ppm
 3 to 9
4 5 4 3   3          
    Potassium, ppm
 9 to 17
7 7 15 14   6          
    Manganese, ppm
 <1
<1 <1 <1 <1   <1          
    Titanium, ppm
 <1 to 114
<1 <1 <1 <1   <1          
    Sulfur, ppm

 

3,187 2,619 3,531 2,850   2,745          
    Copper, ppm
 <1
<1 <1 <1 <1   <1          
    Sodium, ppm
 5 to 454
<5 510 <5 <5 <5
    Vanadium, ppm
 <1
<1 <1 <1 <1   <1          
Contaminants                      
    Silver, ppm
 <1
<1 <1 <1 <1   <1          
    Aluminum, ppm
 <1 to 3
1 <1 1 1   1          
    Chromium, ppm
 <1
<1 <1 <1 <1   <1          
    Iron, ppm
 <1 to 1
<1 1 <1 <1   <1          
    Nickel, ppm
 <1
<1 <1 <1 <1   <1          
    Lead, ppm
 <1
<1 <1 <1 <1   <1          
    Antimony, ppm
 <1
<1 <1 <1 <1   <1          
    Tin, ppm
 <1
<1 <1 <1 <1   <1          

 

a- The standards and ranges shown in the table above are for the latest specification (API SN GF-5)

b-Test Method used for metal analysis is ASTM ASTM D5185.

c- ASTM D5185-09 Reproducibility by Element.

d- Click here for API Service Categories. 

 

 

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