All the time your engine is operating it’s  generating acids, combustion gases, water vapor and fuel byproducts; these contaminates attack the motor oil throughout your engine. 

Unchecked, they will eventually form deposits that can clog oil passages, gum up moving parts and ultimately can reduce engine responsiveness.

So having a clean engine can be critical to engine performance – the way it feels when you step on the gas.

How Pennzoil® Conventional oil cleans.

The Superior Active Cleansing Agents† in Pennzoil Platinum® full synthetic motor oil not only actively seek out and neutralize dirt and contaminants in your oil before they can form harmful performance-robbing deposits, they also continuously attack and help clean up deposits that are already there -- 3X better than the leading conventional oil.** In fact, in a severe sludging test, Pennzoil Platinum® removed almost half the dirt and deposits in a dirtied engine in just one oil change.

In addition, Pennzoil Platinum® is formulated with Adaptive Molecules, which help resist the breakdown caused by heat, shear and pressure in your engine. Less oil breakdown means fewer deposits, helping keep the engine cleaner still.

Our ultimate clean for your ultimate feeling.

In addition to laboratory testing, field trials with New York City cabs using Pennzoil Platinum® full synthetic motor oil and following a regular maintenance schedule demonstrated the cleaning power of Pennzoil Platinum® in harsh, real-world driving conditions.

* Based on ASTM D 6593 sludge results using SAE 5W-30.
** Based on a severe sludging test using SAE 5W-30.
† Superior versus our conventional and synthetic blend motor oils.