Castrol® GTX® Full Synthetic 5W-30 motor oil provides maximum protection to help fight the impact of severe conditions that can potentially shorten engine life. It's formulated to provide Superior Protection in 7 Critical Areas including engine wear and sludge control, cleaning away old sludge*** and protecting against new sludge formation better than required by the latest industry standard. ***When tested in engines with high level of sludge
6X better wear protection on critical engine parts than industry standards**
1.3X better sludge protection than industry standards*
3X Stronger against viscosity breakdown than leading full synthetic^
Protection for 10,000 miles between oil changes
*As measured in Sequence VH sludge test vs. API SP limits
