Royal Purple HMX SAE High-Mileage Synthetic Motor Oil

Royal Purple HMX SAE High-Mileage Synthetic Motor Oil is a synthetic motor oil made for engines with more than 75,000 miles. It helps minimize wear and restore lost performance in older engines. It is a high mileage synthetic engine oil, and you may also see it called high-mileage synthetic motor oil.

Key Features:

• Anti-wear protection: Contains zinc/phosphorus anti-wear additives and Royal Purple's Synerlec additive technology for strong film strength.
• Seal revitalizing: Chemically enhanced to revitalize hardened seals, which helps reduce the oil consumption common in higher mileage engines.
• Deposit control: Strong detergents remove existing engine deposits and build-up, then help keep the engine clean.
• Oxidation resistance: Helps safely extend oil drain intervals.
• Corrosion protection: Helps support engine longevity.

HMX is offered in several SAE viscosity grades. It is intended for 4-cycle gasoline engines with 75,000 miles (120,000 km) or more. Royal Purple states that it meets API Service SL warranty requirements for gasoline engines.