540 RAT

All samples were taken from brand new, thoroughly shaken bottles of oil. And all tests were performed at ALS Tribology, formerly Staveley Labs, in Sparks, Nevada.

Royal Purple 10W30 HPS (High Performance Street)
Silicon = 7 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant)
Magnesium = 46 ppm (detergent/dispersant)
Calcium = 3626 ppm (detergent/dispersant)
Barium = <1 ppm (detergent/dispersant)
Total detergent/dispersant = 3676 ppm
Zinc = 1774 ppm (anti-wear)
Phos = 1347 ppm (anti-wear)
Moly = 189 ppm (anti-wear)
Total anti-wear = 3310 ppm
Potassium = 11 ppm (anti-freeze inhibitor)
Sodium = 2 ppm (anti-freeze inhibitor)
TBN = 10.2 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.3 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.



Royal Purple 5W30 XPR Racing Oil (tested 2 or 3 years ago)
Silicon = 4 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 1 ppm (detergent/dispersant)
Magnesium = 10 ppm (detergent/dispersant)
Calcium = 3039 ppm (detergent/dispersant)
Barium = 0 ppm (detergent/dispersant)
Total detergent/dispersant = 3050 ppm
Zinc = 1421 ppm (anti-wear)
Phos = 1338 ppm (anti-wear)
Moly = 204 ppm (anti-wear)
Total anti-wear = 2963 ppm
Potassium = 0 ppm (anti-freeze inhibitor)
Sodium = 0 ppm (anti-freeze inhibitor)
TBN = 10.9 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.6 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.



Royal Purple 5W30 API SL
Silicon = 9 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 15 ppm (detergent/dispersant)
Magnesium = 1192 ppm (detergent/dispersant)
Calcium = 2745 ppm (detergent/dispersant)
Barium = 0 ppm (detergent/dispersant)
Total detergent/dispersant = 3952 ppm
Zinc = 1179 ppm (anti-wear)
Phos = 985 ppm (anti-wear)
Moly = 211 ppm (anti-wear)
Total anti-wear = 2375 ppm
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 0 ppm (anti-freeze inhibitor)
TBN = 11.0 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.7 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.
Note: Royal Purple is no longer producing their API SL oils. They have been replaced with a new API SN formulation for new cars.


Castrol 5W30 Edge API SM
Silicon = 5 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 57 ppm (detergent/dispersant)
Magnesium = 14 ppm (detergent/dispersant)
Calcium = 3206 ppm (detergent/dispersant)
Barium = 0 ppm (detergent/dispersant)
Total detergent/dispersant = 3277 ppm
Zinc = 955 ppm (anti-wear)
Phos = 799 ppm (anti-wear)
Moly = 149 ppm (anti-wear)
Total anti-wear = 1903 ppm
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 0 ppm (anti-freeze inhibitor)
TBN = 10.1 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 9.7 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.


Castrol 5W30 GTX API SM
Silicon = 8 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant)
Magnesium = 9 ppm (detergent/dispersant)
Calcium = 2969 ppm (detergent/dispersant)
Barium = 0 ppm (detergent/dispersant)
Total detergent/dispersant = 2982 ppm
Zinc = 888 ppm (anti-wear)
Phos = 873 ppm (anti-wear)
Moly = 0 ppm (anti-wear)
Total anti-wear = 1761 ppm
Potassium = 8 ppm (anti-freeze inhibitor)
Sodium = 114 ppm (anti-freeze inhibitor)
TBN = 7.5 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.4 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.


Valvoline 10W40 4 stroke Motorcycle Oil API SJ (tested 2 or 3 years ago)
Silicon = 20 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 137 ppm (detergent/dispersant)
Magnesium = 13 ppm (detergent/dispersant)
Calcium = 1849 ppm (detergent/dispersant)
Barium = 0 ppm (detergent/dispersant)
Total detergent/dispersant = 1999 ppm
Zinc = 1154 ppm (anti-wear)
Phos = 1075 ppm (anti-wear)
Moly = 0 ppm (anti-wear)
Total anti-wear = 2229 ppm
Potassium = 0 ppm (anti-freeze inhibitor)
Sodium = 126 ppm (anti-freeze inhibitor)
TBN = 7.1 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 14.6 (cSt range for SAE 40 is 12.5 to 16.2) And cSt (centistokes) in general terms, represents an oil’s thickness.

billla

That's all great information - thank you!

Everything seems to be about where it should be in terms of ppm ZDDP