2026 New Castrol GTX Full Synthetic 5W-30 Motor Oil, 5 Quarts

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
• **As measured in the latest Sequence IVA test
• ^ Based on Kurt Orbahn test in 5W-30 grade
• Meets or exceeds the following specifications:
• API SQ/SP/SN PLUS/SN
• ILSAC GF-7
• GM dexos1-?Gen 3
• Meets Ford WSS-M2C947-B1
• Meets Ford WSS-M2C962-A1