10W-30 Advanced Full Synthetic Motor Oil, 5 Quarts

10W-30 is an advanced full synthetic motor oil and the optimal choice for drivers who want the best combination of wear protection, viscosity control and thermal stability to maximize engine performance. It is one of Castrol’s strongest engine oils with the strength to maintain this unsurpassed level of engine protection for up to 20,000 miles between oil changes or one year.

• 3X Stronger against viscosity breakdown than leading full synthetic*
• 10X Better high stress performance**
• 20,000 miles between oil changes***
• *Viscosity breakdown as measured in Kurt Orbahn test on 5W-30 grade
• **As measured in Seq IX test under high load/torque conditions vs. API SP test limits
• ***Or one year, whichever comes first
• Approved and Licensed Specifications:
• Exceeds API SP/SN PLUS/SN/SM
• ILSAC GF-6