Motul Classic Straight Weight Oil Motul's SAE 50 mineral oil is crafted for vintage vehicles, integrating modern advances to safeguard classic engines. It's enriched with high levels of Zddp to provide paramount anti-wear protection suitable for flat-tappet cams prevalent in these engines. The oil's low-detergent mineral base ensures compatibility with old cork and paper gaskets, effectively preventing leaks. Its robust viscosity maintains stable oil pressure and a continuous lubricating film under high temperatures, ideal for air-cooled V-twins. Enhanced adherence qualities offer crucial component protection during startups after extended storage periods, making it perfect for heritage motorcycles including Harley Shovelheads and older. Features: High Zddp Content: Provides critical anti-wear protection for flat-tappet cams Protects Vintage Seals: Low-detergent formula prevents leaks in original cork and paper gaskets High-Heat Stability: SAE 50 viscosity maintains stable oil pressure in hot, air-cooled engines Immediate Start-Up Lubrication: Enhanced adherence clings to parts, even after long storage periods Classic Engine Formula: Mineral monograde oil specifically for older vehicle engines Heritage Motorcycle Approved: Ideal for Harley-Davidson Shovelheads and older models Not designed for wet clutches