Liqui Moly Motor Oil Saver oil additive 300 ml — restores engine seals, reduces oil consumption

LIQUI MOLY Motor Oil Saver is a 300 ml oil-additive formula that refreshes rubber and plastic seals in engine oil systems to reduce oil consumption and leaks.

Engine seals and elastomers harden with time and heat, which can lead to higher oil burn, blue smoke from the exhaust, and external drips. This 300 ml concentrate is designed to be mixed with the engine oil of gasoline and diesel engines to soften and restore sealing materials, quiet certain noises, and help limit oil loss without disassembling the engine.

How does this additive lower oil consumption?

The formula penetrates and conditions valve stem seals, piston ring areas, and other elastomeric components so they regain flexibility and sealing ability. By improving the seal contact surfaces, less oil reaches the combustion chamber and less is lost through leaks.

• Softens aged rubber and plastic sealing parts
• Reduces oil flow past valve guides and piston rings
• Suitable for both petrol and diesel engines

Will it stop blue exhaust smoke and visible oil leaks?

When seals regain their elasticity, less oil can enter the combustion process—so blue smoke often diminishes. External oil seepage at seal joints is also decreased, in many cases becoming hardly noticeable.

• Helps reduce bluish exhaust smoke from oil burning
• Minimizes external leaks at gaskets and seals
• Can improve visible cleanliness around the engine bay

How do I use LIQUI MOLY Motor Oil Saver and when will I see results?

Add the 300 ml bottle directly into the engine oil sump via the oil filler opening; follow dosing instructions on the label for the oil capacity of your vehicle. Effects vary with seal condition and engine type—some improvement is seen after a short driving period, while full restoration may take several hundred kilometers of operation.

• Pour into warm engine oil for faster dispersion
• One bottle treats typical passenger-car oil capacities
• Check the label for recommended service intervals and repeat dosing if needed

Are there compatibility or safety considerations?

The additive is formulated for use in conventional engine oils and is compatible with most petrol and diesel engines. Always confirm compatibility with the vehicle manufacturer's specifications and avoid overfilling; handle the product per safety instructions on the packaging.

• Works with standard engine oils unless otherwise stated
• Follow label directions and safety data sheet for handling
• Not a substitute for mechanical repair when seals are severely damaged

Who is this for? LIQUI MOLY Motor Oil Saver 300 ml is suited to owners of older or high-mileage petrol and diesel cars noticing increased oil consumption, faint blue smoke, or minor external leaks. It’s also useful for workshops and service technicians who want a non-invasive option to restore seal elasticity, dampen certain engine noises, and extend intervals between mechanical seal repairs.