NOW CLEANS OUT UP TO 40% OF SLUDGE IN THE FIRST OIL CHANGE.* You know how sludge buildup can affect engine response, longevity, even fuel economy. That’s why we’ve engineered a new generation of Pennzoil® motor oil that not only helps prevent sludge, but cleans out sludge even better than before.* So feel the clean today with next-generation Pennzoil® and turn your engine into a self-cleaning engine. Not just oil, Pennzoil.® *Based on a severe sludge clean-up test using SAE 5W-30.