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Spectro Platinum 6 Speed Heavy Duty Full Syn Trans Oil Platinum 6 Speed is a full synthetic transmission oil engineered for Harley-Davidson 6‑speed gearboxes and high-performance motorcycles. Delivering smoother shifts, quieter operation, and exceptional protection under extreme loads, it keeps your drivetrain performing at its best. Key Benefits Smoother shifting & quieter running: Special formulation reduces gear noise and improves shift feel. Advanced G4 Technology: Optimized friction characteristics for consistent performance. Superior wear protection: Anti‑wear additives maintain film strength and greatly reduce gear wear. High temperature & load resistance: Withstands extreme heat and heavy use—built to be pushed hard and long. OEM & warranty compliant: Exceeds O.E.M. specifications and Harley‑Davidson warranty requirements. Industry rated: A.P.I. GL‑5 rated for heavy duty protection. Choose Spectro Platinum 6 Speed Heavy Duty Full Syn Trans Oil for reliable, long‑lasting gear protection and improved ride quality on Harleys and other 6‑speed motorcycles.
Developed for Harley-Davidson 6 speed transmission
Provides quieter running and smoother shifting
Formulated with G4 Technology
Special anti-wear additives that greatly reduce wear
Maintains higher film strength between gears while reducing drag
High loads and extreme heat resistant
Made to be pushed hard and long
Exceeds all O.E.M. and Harley-Davidson warranty requirements