DuraShield™ Boosters: Actively fights the main causes of engine damage by removing harmful soot from metal surfaces and preventing it from clumping together. Up to 400 Hours of Protection: Tested to provide reliable protection for up to 400 hours in tractor engines under normal operating conditions. Twice the Engine Life: Proven to provide up to 2X (twice) the engine life compared to standard CH-4 oils without DuraShield technology. Superior Soot Management: Maintains oil viscosity and prevents abrasive wear by efficiently handling soot particles. High Thermal Stability: Resists oil thickening even when the engine runs at high temperatures for long durations. Anti-Corrosion Formula: Contains specialized additives that neutralize harmful acids and protect engine parts from rust and corrosion.