Royal Purple Industrial Quadrex Natural Gas Engine Oil

Quadrex® is a high-performance, low-ash, SAE 40 synthetic blend oil for 4-cycle natural gas engines, formulated to support reliable operation in demanding stationary service. Its advanced gas-engine additive system and Synerlec® proprietary additive technology provide strong film protection and resistance to oxidation, nitration, deposits and wear. Together, these technologies help extend oil life, improve engine cleanliness and reduce maintenance costs under heavily loaded, high-temperature conditions.