GTX 5W-30 Synthetic Blend Motor Oil, 5 Quarts

Castrol GTX provides superior sludge protection to help extend engine life. Severe driving conditions such as heavy traffic, poor fuel quality, harsh driving conditions and exceeding oil change intervals can all cause the build-up of a thick, tar like substance called sludge. Sludge can block your engine's vital oilways like cholesterol and if untreated, can rob an engine of its power and ultimately its life. Castrol GTX is specially engineered to prevent harmful build-up of sludge while protecting against new oil splatter formation better than tough industry standards.