Pennzoil 5W-30 4-Cycle Synthetic Blend Motor Oil 5 qt 1 pk, Pack of 3Not only helps dirt and contaminants from turning into performance robbing deposits, bit also cleans out sludge. Because at Pennzoil we know a engine is better protected and responsive. It meets or exceeds the engine protection and is specially formulated to provide extra protection against harmful effects of stop and go driving and high and low temperature engine operation. No leading oil helps keep engines cleaner Controls high temperature oxidation