Purpose and Specifications

PRO-TEC EOSL is a powerful engine oil stop leak additive designed for both diesel and gasoline engines. This 375ml treatment quickly regenerates worn rubber and plastic seals in the oil system, stopping leaks at gaskets, valve covers, and seals without disassembly. It reduces oil consumption, cuts engine wear, and keeps oil viscosity stable for smoother operation and longer engine life.

• Stops leaks fast: Seals repair in as little as 100-200 km of driving.
• Works in extreme conditions: Protects from -30°C cold starts to 150°C high-heat operation.
• Easy one-time dose: Add one 375ml bottle to your engine oil; treat every 10,000 km or 12 months.
• Shelf life: 3 years unopened, stable up to 25°C storage.

When to Use / Replace?

Use PRO-TEC EOSL at the first sign of oil spots under your car, low oil levels between changes, or burning oil smell. Ideal for older engines over 100,000 km with minor leaks. Replace the treated oil after 10,000 km or 12 months to maintain protection. Regular use every oil change prevents future leaks and extends engine life up to 50% longer.

Pro Tip: Safe for all passenger cars; shake well and pour into warm engine oil before driving.