Liqui Moly Motor Oil Saver additive — 300 ml bottles (2-pack), restores rubber seals & reduces oil consumption

Liqui Moly Motor Oil Saver is an additive designed to restore and preserve rubber and plastic seals in gasoline and diesel engine oil circuits to lower oil consumption and stop blue smoke.

This concentrated 300 ml formula, supplied here as a convenient two-pack, works by softening and rejuvenating hardened valve stem seals and other elastomer components exposed to engine oil. It addresses common causes of oil seepage and burnt-oil symptoms without requiring disassembly, offering a preventative and corrective option for engines showing increased oil use or light-blue exhaust smoke. The product is compatible with most conventional and synthetic engine oils when used per directions and is intended for professional or DIY use on cars, vans, and light commercial vehicles.

How does Motor Oil Saver reduce oil consumption?

Motor Oil Saver replenishes plasticizers and conditioners that harden in rubber seals over time, helping seals regain flexibility and sealing performance. By improving the seal contact surfaces, less oil migrates past valve stems and other critical points into the combustion chamber.

• Restores elasticity of valve stem seals and O-rings
• Reduces oil leakage and oil burning symptoms
• Works during normal engine operation—no teardown needed

Will this stop blue exhaust smoke and improve emissions?

When blue smoke is caused by oil entering combustion chambers through worn or hardened seals, Motor Oil Saver can substantially reduce or eliminate that smoke by improving seal integrity. Results depend on the age and damage level of seals—severely cracked or mechanically damaged seals may still require replacement.

• Targets smoke caused by seal degradation
• May reduce visible oil-burning emissions
• Not a substitute for repairs when seals are physically torn

How do I use the 300 ml bottle in my engine?

Pour the entire 300 ml bottle into the engine oil through the filler neck with the engine stopped and at operating temperature specified by the manufacturer. Follow recommended dosages on the label and run the engine for several hundred miles to allow the additive to circulate and act on seals.

• Use the full bottle per treatment for typical passenger cars
• Compatible with both gasoline and diesel engine oils
• Allow normal driving time for the additive to take effect

What immediate benefits can I expect after application?

Users commonly see reduced oil consumption, fewer blue-smoke events on start-up and during acceleration, and diminished external oil leaks as seals regain pliability. Noise reduction from valve-related leaks may also occur, potentially lowering the need for early repairs.

• Lowered oil top-up frequency
• Reduced visible exhaust smoke in many cases
• Minimized drip or weep leaks around seals and gaskets

Who is this for: Liqui Moly Motor Oil Saver is intended for vehicle owners and professional mechanics seeking a non-invasive way to address oil consumption and seal-related leaks in gasoline and diesel engines. It is suitable for cars, light trucks and vans showing signs of seal hardening or increased oil use, but it is not a guaranteed fix for mechanically damaged seals—those may still need replacement. Always follow the vehicle manufacturer’s recommendations and the product instructions when adding additives to an engine oil circuit.