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 themarketplace.






RacePro 5W-30 Semi Synthetic Premium Motor Oil 5W-30, Label marked as "API Service SM GFD-4"

Race Pro Products Co. Riverside, CA






Purchased in: Barstow Chevron, Barstow, CA

Date of purchase: April 28, 2011 





Advisory: The sample tested does not meet the NOACK Volatility requirements of an API SM ILSAC GF-4 5W-30 Engine Oil.


Further, the label displays "GFD-4" in the Donut. Although there is an ILSAC GF-4 specification, there is no specification set forth by ILSAC designated "GFD-4."   







PHYSICAL TESTS Standard/ranges-b Average-e

RacePro 5W-30 Premium Motor Oil

 TBN, mg KOH/g, (ASTM D2896) 7.4 to 9.0 8.0 5.5
 Viscosity @ 100ºC, cSt, (ASTM D445) 9.3 to 12.5 10.39 9.78
 Viscosity @ 40ºC, cSt, ASTM D445 55.0 to 82.0 60.48 57.61
 Viscosity Index (ASTM D2270) 156 to 167 163 156
 Viscosity @ -30ºC mPa s (cP) (ASTM D5293) 6,600 Max 5,793 5,960
 Volatility, mass % loss, 1 hr, @ 250ºC (ASTM D5800) 15 Max 13.5 18.4/19.2-f
    Nitrogen μg/g (ASTM D-5762) 720 to 1,000 860 530
    Calcium  1,648 to 2,301 2,043 1,395
    Magnesium, ppm  6 to 43 11 85
    Phosphorus,  ppm 600 to 800 772 610
    Zinc, ppm  789 to 887 851 677
    Molybdenum,  ppm  <1 to 226 93 10
    Barium, ppm  <1 <1 0
    Boron,  ppm  <1 to 246 84 3
    Silicon,  ppm-d  4 to 8 5 2
    Potassium, ppm  <1  <1 0
    Manganese, ppm  <1 to 8 1 0
    Titanium, ppm  <1 <1 0
    Sulfur, ppm  5,000 max 3,021 2,458
    Copper, ppm  <1  <1 0
    Sodium, ppm  <1 to 467 82 0
    Vanadium, ppm  <1 <1 0
    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 5 2

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 major brands tested.

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- Initial Noack test result was 18.4. A recheck of the test gave 19.2% loss.


RacePro 5W-30 Premium 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 RacePro 5W-30 Premium 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 RacePro 5W-30 Premium Motor Oil 5W-30 are illustrated by the horizontal line.


The viscometrics of RacePro 5W-30 Premium Motor Oil 5W-30 meets the required targets for a 5W-30 API SM (SAE J300 specification).


Volatility Phosphorus
The volatility of RacePro 5W-30 Premium Motor Oil 5W-30 does not meet the parameters required for an API SM ILSAC GF-4 designation.

Click here for more on Volatility.

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