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HR3 10W-30 Synthetic Engine Oil delivers exceptional protection for supercharged, big block, and looser clearance engines, making it ideal for high-performance applications such as long stroke or high compression engines. Designed with advanced storage protection additives, it effectively guards against rust and corrosion during winter storage, ensuring your engine remains in peak condition even during extended downtime. This oil is safe for use with O2 sensors and vehicles equipped with catalytic converters, offering compatibility with modern engine systems. With a viscosity typical of 15W-50, it provides reliable lubrication under demanding conditions without requiring ZDDP or additional additives. Formerly known as HR3, this premium synthetic oil is a trusted choice for maintaining engine durability and performance.

Product Features:

Product Features:
• Provides exceptional protection for supercharged, big block, and looser clearance engines, ensuring optimal performance in high-stress applications.
• Advanced storage protection additives guard against rust and corrosion during winter storage, preserving engine integrity during extended downtime.
• Compatible with O2 sensors and catalytic converters, making it suitable for modern engine systems without compromising functionality.
• Delivers reliable lubrication under demanding conditions with a viscosity typical of 15W-50, ensuring consistent engine performance.
• Eliminates the need for ZDDP or additional additives, simplifying maintenance while maintaining engine durability.