Originally Posted By: Hallmark
Pennzoil claims that PP clean pistons up to 8% better than Mobil 1.
How that claim equates to empirical evidence in the public forum or observable results remains to be seen.
By:
MOTOR AGE Wire Reports
August 23rd, 2012
"Using the industry-standard measurement for piston cleanliness, the Sequence IIIG test for weighted piston deposits, Pennzoil Ultra and Pennzoil Platinum were tested against the leading synthetic motor oils in the marketplace. The Sequence IIIG procedure measures oil thickening and piston deposits during high-temperature conditions, inspecting pistons for deposits and varnish following the testing. Following the testing, the oil is scored on the level of piston deposit with a minimum rating of 4.0 required to pass; the higher the rating, the better the piston cleanliness.
The Pennzoil team hired an outside firm to purchase competitive test oils and the oils were then blind coded and randomized and sent to an independent test laboratory for Sequence IIIG testing. Multiple tests were completed on the oils and then assessed at the 95 percent confidence level. After the grueling 100 hour test, Pennzoil Ultra and Pennzoil Platinum exceeded the minimum rating, as well as the competitors’ ratings."
