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Royal Purple HPS?

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Old 01-28-2012, 12:26 AM
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Question Royal Purple HPS?

Has anybody used the Royal Purple HPS? I found this lab test and the results look good.


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.


I ran Mobil1 but it was on the thin side so i switched to Castrol but was thinking i might try this out next oil change. The numbers look good but wanted to know if anyone has used it? or would recommend it?
Old 01-28-2012, 07:49 AM
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i like it, no problems the 3 years i used the stuff. the only reason i switched was price.



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