Liqui Moly Motorbike Engine Flush is a highly effective cleaning fluid designed to clear the engine interior of troublesome deposits and sludge. By dissolving lacquer formers and bringing residues into suspension, it ensures that contaminants are fully removed during the oil change. This process allows your fresh motor oil to perform at its full potential without being contaminated by old residues.
PERFORMANCE: Restores engine performance, improves compression, and extends service life by cleaning vital oil circuits.
Key Features
✔ Safe for wet clutches
✔ Tested with catalytic converters
✔ Does not attack common seal materials
✔ Rapid cleaning (10-minute idle time)
✔ Highly economical: 250ml treats 4.5L of oil
Technical Specs
SKU / MPN:
1638
Density at 20°C:
0.805 g/cm³
Viscosity at 40°C:
24.12 mm²/s
Flash Point:
61 °C
Base:
Additive / Carrier liquid
Volume:
250 ml
Compatibility / Fitment Guide
Engine Type
Application
Notes
4-Stroke Gasoline
All Motorbikes / Scooters
Safe for manual transmissions
Wet Clutch Systems
Motorcycles with oil-bath clutches
Fully compatible; does not cause slipping
Exhaust Systems
Catalytic Converters
No negative impact on emissions systems
Reference Part Numbers
Liqui Moly SKU
1638 / 1657 / 21717 / 20050
EAN
4100420016578
Questions & Answers
Is this safe for motorcycles with a wet clutch?
Yes, Liqui Moly Motorbike Engine Flush is specifically formulated for 4-stroke motorcycle engines and has been extensively tested for compatibility with wet clutch systems. It will not cause clutch slippage when used as directed.
How do I use this product?
Add the 250ml contents to your warm engine oil before your scheduled oil change. Allow the engine to idle for approximately 10 minutes (do not drive). If you have a manual transmission, pull the clutch lever several times during idling. Then, drain the oil and replace the filter as usual.
How much oil does one can treat?
One 250ml can is sufficient for oil systems with a capacity between 3.0 and 4.5 litres.
Note: Professional grade additive. For 4-stroke gasoline engines only. Always follow your vehicle manufacturer's oil change intervals. Visit 4drive.co.uk for more premium maintenance parts.
