Less Maintenance and Longer Lifespan For Your transport Fleet Viscosity1

Viscosity1 15W40 heavy-duty oil, proudly made in the USA, meets the advanced CK-4 standard, outperforming older specifications like CJ-4.
With improved oxidation resistance, better engine protection, and enhanced performance for modern engines, it reduces maintenance and extends equipment life.
Ideal for heavy-duty trucks, construction machinery, agricultural equipment, and off-road vehicles. Choose Viscosity1 for a reliable and longer-lasting engine!
⚡️One Standard, Many Miles Ahead