For vehicle owners experiencing oil leaks or increased oil consumption, Liqui Moly Pro-Line Oil Stop Leak offers an effective solution by rejuvenating engine seals to reduce drips and blue smoke. While highly effective for most gasoline and diesel engines, it's crucial to note that it is **not suitable for motorcycles with wet clutches** and requires some driving time to fully take effect. This guide will walk you through how to best utilize this product to prolong your engine's health and reduce oil consumption.
Rejuvenates Engine Seals: Restores flexibility to hardened rubber and plastic engine seals, preventing oil from escaping.
Reduces Oil Consumption: Directly tackles the problem of oil loss through worn seals, decreasing the need for frequent top-ups.
Prevents Blue Smoke: By reducing oil burning, it helps eliminate the unsightly and environmentally harmful blue smoke from the exhaust.
Compensates for Viscosity Loss: Helps maintain optimal oil viscosity, crucial for engine protection and performance.
Dampens Engine Noise: Contributes to a quieter engine operation by improving lubrication and sealing.
Broad Compatibility: Suitable for all gasoline and diesel engines, including vehicles equipped with Diesel Particulate Filters (DPF).
Mixable with All Motor Oils: Can be safely mixed with any commercially available motor oil.
Long-lasting Effect: Provides a durable sealing effect, especially when reapplied after each oil change.
Effective Oil Leak Reduction: Proven to stop or significantly reduce oil leaks by conditioning seals.
Reduces Oil Burning: Directly addresses blue exhaust smoke caused by oil consumption.
Engine Protection: Helps maintain oil viscosity and reduces engine noise, contributing to overall engine health.
Wide Vehicle Compatibility: Safe for use in a vast range of gasoline and diesel vehicles, including those with DPF.
Easy Application: Simply add to existing engine oil.
Cost-Effective Solution: Can postpone expensive seal replacements.
Delayed Effect: Requires approximately 600-800 km of driving for the sealing effect to fully take place.
Not for All Vehicles: Explicitly unsuitable for motorcycles with wet clutches.
Requires Regular Reapplication: For a lasting effect, it needs to be added after every oil change, which is an ongoing cost.
May Not Fix Severe Mechanical Damage: Primarily addresses leaks due to hardened seals, not structural damage or extremely worn components.
Effective Oil Leak Reduction: Proven to stop or significantly reduce oil leaks by conditioning seals.
Reduces Oil Burning: Directly addresses blue exhaust smoke caused by oil consumption.
Engine Protection: Helps maintain oil viscosity and reduces engine noise, contributing to overall engine health.
Wide Vehicle Compatibility: Safe for use in a vast range of gasoline and diesel vehicles, including those with DPF.
Easy Application: Simply add to existing engine oil.
Cost-Effective Solution: Can postpone expensive seal replacements.
Delayed Effect: Requires approximately 600-800 km of driving for the sealing effect to fully take place.
Not for All Vehicles: Explicitly unsuitable for motorcycles with wet clutches.
Requires Regular Reapplication: For a lasting effect, it needs to be added after every oil change, which is an ongoing cost.
May Not Fix Severe Mechanical Damage: Primarily addresses leaks due to hardened seals, not structural damage or extremely worn components.
The Liqui Moly Pro-Line Oil Stop Leak works by using special additives that rejuvenate and restore the elasticity of hardened or brittle rubber and plastic engine seals. Over time, engine heat and contaminants can cause these seals to shrink and crack, leading to oil leaks and increased oil consumption. By revitalizing these materials, the product helps them regain their original sealing properties.
You will typically observe a reduction in oil consumption and a decrease in blue exhaust smoke, which indicates oil burning. The additive also contributes to a more stable oil viscosity, providing better lubrication and potentially dampening engine noise.
To achieve its full effect, the product needs time to circulate and interact with the seals. The sealing process typically begins to take effect after approximately 600-800 km (370-500 miles) of driving. For optimal and lasting results, it is recommended to reapply the additive after every oil change. This ensures that the seals remain conditioned and effective over the long term.
Application Ratio: One liter of Liqui Moly Pro-Line Oil Stop Leak is sufficient for 15 liters of motor oil. Adjust the amount added proportionally to your engine's oil capacity. For most passenger vehicles, a smaller quantity will be needed. For example, if your car holds 5 liters of oil, you would use approximately 333ml of the additive (1000ml / 15 liters * 5 liters = 333.33ml).
Ensure your engine is at operating temperature.
With the engine off, locate your engine's oil filler cap.
Carefully pour the appropriate amount of Liqui Moly Pro-Line Oil Stop Leak directly into the engine's oil filler port. Refer to the application ratio (1 liter per 15 liters of motor oil) to determine the correct quantity for your vehicle.
Replace the oil filler cap securely.
Drive your vehicle as normal. The sealing effect will gradually develop over approximately 600-800 km of driving.
Engine Types: Suitable for all gasoline and diesel engines.
DPF Compatibility: Safe for use in vehicles equipped with Diesel Particulate Filters (DPF).
Oil Compatibility: Can be safely mixed with all commercially available motor oils.
Incompatibility: NOT suitable for motorcycles with wet clutches.
For a lasting effect, it is crucial to reapply Liqui Moly Pro-Line Oil Stop Leak after each oil change. This maintains the rejuvenated state of your engine's seals and prevents recurrence of leaks.
Store the product in a cool, dry place, away from direct sunlight and out of reach of children.