Super Premium Synthetic Blend 4 Stroke Oil 25w40 – 3.7L

Heavy-Duty Synthetic Blend for Demanding Marine Engines

Pro Star Super Premium Synthetic Blend 4 Stroke Oil 25w40 3.7L is engineered for marine engines operating at high rpm and under extreme stress. This synthetic blend meets and exceeds OEM and API standards, offering excellent sludge protection, stable viscosity under load, and improved cold-start properties. Perfect for large 4-stroke outboards, inboards, and stern drives.

Product Benefits:

• OEM Approved: Exceeds engine manufacturer requirements without voiding warranties.
• Meets API Performance Levels: Complies with API SJ, CF-4, and CH-4 standards.
• Formulated for Marine Applications: Designed for engines that run at high rpm in marine conditions.
• Sludge Prevention: Keeps engine internals clean by preventing sludge and deposits.
• Viscosity Retention: Shear-stable polymer additives maintain viscosity under stress.
• Cold Weather Advantage: Synthetic/organic blend offers superior cold-start performance.
• High-Performance Protection: Delivers durability and wear protection in severe marine applications.

Why Choose Pro Star 25w40?

Pro Star Synthetic Blend 25w40 3.7L provides premium protection and reliability for high-demand marine engines operating in tough environments.