Liqui Moly Pro-Line Engine Flush 5L - Professional Sludge & Deposit Remover (22246)
Liqui Moly Pro-Line Engine Flush 5L - Professional Sludge & Deposit Remover (22246)
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Shipping & returns
Shipping details
In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
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Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
Read the full return policyReturn details & how to start
Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.
Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.
Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.
After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.
Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.
For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
Key Features
- Professional-grade formula for deep cleaning high-mileage and neglected engines
- Removes harmful varnish, sludge, and carbon deposits before oil changes
- Cleans lubrication holes, oil screens, and piston ring zones
- Reduces engine noise and oil consumption while improving compression
- Restores proper oil pressure and optimizes cold-start oil flow
- Compatible with all 4-stroke gasoline and diesel engines (turbo-safe)
- Safe for catalytic converters and particulate filters (GPF/DPF)
- Works with all commercially available engine oils
- 5 Liter size for commercial/fleet applications (treats 30-50L of motor oil)
LIQUI MOLY Pro-Line Engine Flush is a highly effective, professional-strength cleaner engineered for quick and safe removal of deposits in engines before an oil change. Featuring powerful detergent and dispersant additives, this German-formulated treatment dissolves stubborn sludge, lacquer, and carbon buildup that accumulates during normal engine operation. Simply add to the engine oil at operating temperature, idle for 10-15 minutes, then change your oil and filter. Fresh oil immediately develops full performance, restoring engine efficiency and reducing emissions. This 5-liter commercial size is ideal for shops and fleet maintenance.
Application
Add Pro-Line Engine Flush to engine oil at operating temperature before changing oil. Allow engine to idle for 10-15 minutes depending on contamination level. Change oil and filter. Not suitable for motorcycles.
