HR-4 High Zinc Synthetic (10w-30) - Quart
Designed Specifically For Hot Rods & Classic Vehicles
Excellent start-up protection with the high temperature stability of a synthetic. Provides fuel economy gains compared to heavier conventional oils. Great choice for street rods with crate engines. Compliant with OBDII and can be used in all emisions equipped vehicles. No ZDDP or additives required. Viscosity typical of 10W-30. Formerly referred to as HR4.
- ZDDP Anti-Wear Additives
- Storage & Start-Up Protection
- Extended Oil Change Intervals
- High Temp High Shear Stability
STORAGE PROTECTION - Uses the same oil additive technology developed for the U.S. Military for storing and shipping their combat equipment. Protects against rust and corrosion so your engine is protected even when it’s not running.
HIGH ZINC CONTENT - Higher levels of Zinc (ZDDP) than regular passenger car oils. Delivers proper anti-wear protection for older style push-rod and flat-tappet engines.
CAMSHAFT WEAR PROTECTION - Superior camshaft wear protection chemistry. The same wear protection found in Driven Racing Oil which has powered Joe Gibbs Racing to multiple NASCAR Championships.
SYNTHETIC FORMULA - Our synthetic formula provides improved cold-start protection compared to mineral oils.