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.  

February 2012

Click Bottles Below for More Detail

Test Results for  10W-40 Motor Oils

   
  Gold Star API SC/CC Duplex
API SN
DG Auto
API SF
Carolina Petroleum
API SM
   
  ADVISORY   NOTE                
PHYSICAL TESTS (click test for details)
Standards/ranges-a
                     
   TBN, mg KOH/g, (ASTM D2896)
6.1 to 8.3
4.6 7.4 3.5 8.0              

   Viscosity @ 100șC, cSt, (ASTM D445)

12.5 to 16.3
12.7 13.7 14.1 15.1
   Viscosity @ 40șC, cSt, (ASTM D445)
55.8 to 65.2
88.4 93.3 90.0 103.1              
   Viscosity Index (ASTM D2270)

156 to 169

141 148 162 154
   Viscosity @ -25șC mPa s (cP) (ASTM D5293)
7,000 Max
9,781 6,445 4,175 5,783              
   NOACK volatility, mass % loss, 1 hr, @ 250șC (ASTM D5800)
15 Max
7.9 15.7/15.2-e 17.9 9.0              
ELEMENTAL ANALYSIS-b,c
Additives                      
    Nitrogen μg/g (ASTM D-5762)

599 to 990

644.4 679.9 349.8 962.8              
    Calcium, ppm
 1,570 to 2,460
1,058 1,999 991 2,077              
    Magnesium, ppm
 6 to 46
103 18 4 17.0              
    Phosphorus ,ppm
600 to 800
725 739 378 691              
    Zinc, ppm

 766 to 868

537 810 404 807              
    Molybdenum,  ppm

 <1 to 269

23 40 20 85              
    Barium, ppm

 <1

10 <1 <1 <1              
Additive and/or other                      
    Boron,  ppm
 <1 to 237
24 4 20 228              
    Silicon,  ppm
 3 to 9
22 2 8 6              
    Potassium, ppm
 9 to 17
5 5 <5 7              
    Manganese, ppm
 <1
<1 <1 <1 <1              
    Titanium, ppm
 <1 to 114
<1 <1 <1 <1              
    Sulfur, ppm

5,000 max

5,010 3,180 2,300 3,000              
    Copper, ppm
 <1
<1 <1 <1 <1
    Sodium, ppm
 5 to 454
29 <5 <5 5              
    Vanadium, ppm
 <1
<1 <1 <1 <1              
Contaminants                      
    Silver, ppm
 <1
<1 <1 <1 <1              
    Aluminum, ppm
 <1 to 3
<1 <1 <1 3              
    Chromium, ppm
 <1
<1 <1 <1 <1              
    Iron, ppm
 <1 to 1
2 <1 <1 <1
    Nickel, ppm
 <1
<1 <1 <1 <1              
    Lead, ppm
 <1
<1 <1 <1 <1              
    Antimony, ppm
 <1
<1 <1 <1 <1              
    Tin, ppm
 <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- This product is labeled as meeting API SF which is an obsolete specification and is not recommended for passenger cars built after 1988. In addition, this product is labeled as meeting API CC which is an obsolete specification and is not recommended for diesel engines built after 1990. The product label does not adequately warn consumers of this limited use. Click here for API Service Categories. 

e- The specification of 15 max is expressed in two significant figures and therefore the average of the results meets the specification.

 

 

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