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⚡ Unlock your engine’s hidden power — don’t let deposits hold you back!
Liqui Moly Pro-Line Engine Flush is a concentrated, unscented liquid additive designed to dissolve and remove sludge, lacquer, and deposits from petrol and diesel engines. One 500 ml can treats up to 5 liters of oil, improving compression, reducing engine noise, and lowering oil consumption. Trusted by professionals and backed by over 14,000 positive reviews, it restores engine efficiency and longevity when used before oil changes.







| ASIN | B001CZSG94 |
| Best Sellers Rank | 324 in Automotive ( See Top 100 in Automotive ) 2 in Engine Oil Additives |
| Brand | Liqui Moly |
| Brand Name | Liqui Moly |
| Contains Liquid Contents? | Yes |
| Country of Origin | Germany |
| Customer Reviews | 4.7 out of 5 stars 14,474 Reviews |
| Global Trade Identification Number | 04100420024276 |
| Included Components | Liqui Moly 2427 Pro-Line Engine Flush 500ml |
| Item Form | Liquid |
| Item Type Name | Pro-Line Engine Flush |
| Item Volume | 500 Millilitres |
| Item Weight | 8.1 Ounces |
| Item form | Liquid |
| Item volume | 500 Millilitres |
| Manufacturer | Liqui Moly |
| Material Features | Unscented |
| Material Type Free | Silicone Free |
| Material feature | Unscented |
| Model Number | 2427 |
| Number of Items | 1 |
| Part Number | P000065 |
| Product Warranty | 2 Year |
| Scent | Unscented |
| Size | 500 ml (Pack of 1) |
| Special Features | Concentrated |
| Specific Uses For Product | Universal |
| Specific uses for product | Universal |
| Surface Recommendation | Vehicle |
| Unit Count | 500.0 millilitre |
E**A
93000 mile, 15 year old Audi BWA engine - cleaned and restored!
A great product from LiquiMoly, I used this in my 15 year old EA113 BWA engined Audi TT with 93000 miles on the clock, which had never been flushed before, but did have regularly oil changes. It seems to have quietened the engine, most notably, there seemed to be a slight dip in oil pressure to the turbo which would manifest itself as a minor whine when cornering at higher rpm - this has now been much improved, along with a switch to heavier 5W-40 Molygen oil. I had no problems with it, no leaks have occurred, it seems to burn less oil now and runs smoothly. Although mpg has not changed. I had no doubt the longevity of the effects of the flush will continue, as I keep up regular oil changes. This seems to be a “once every so often” flush, rather than an every oil change flush. Overall, this is a value for money product, that can help restore proper oil flow, especially to the top of the engine.
J**S
Not Snake Oil!
Excellent product. Tested on my 2020 Ford Puma 1.0T. Before testing, the engine sounded a little rough so figured an oil change might be due. Added to the existing oil and car left to idle for 15 minutes as per instructions. Once complete, oil drained and the waste oil was disgusting and had a petrol odour to it, very very dark too, so obviously a lot of deposits and carbon had been removed. Engine filled with LiquiMoly SpecialTec 5W20, designed for Ecoboost engines, new filter and left to run to temperature, engine noises and roughness has disappeared. Only time will tell if any long term benefits will appear but immediately, the engine sounds and runs much happier. Can honestly say it isn't snake oil, and effectively does it's job!
L**N
Does what it says on the tin
Ran it through a 2001 Yaris and it cleared the vvti out a treat.
A**R
Good Product…
Good reputation for their products, delivered next day.
M**I
Effective
Works as expected. Cleans deposits well before oil changes. Easy to use. Good quality, just a bit more expensive than cheaper options.
A**I
Highly recommended
It’s very soft to use and it’s durable,value for money
A**E
Clean engine
I have given this ago on my 5 year Old Ford ST car. It seem to do a good job to clean oil from the engine. I would use this again 100% recommend this for older cars. You might need to do it couple of times.
J**.
Good service
Great quality
B**.
Vor dem Ölwechsel: Für mich mittlerweile Pflicht
Kurzfazit Ich habe die Pro-Line Motorspülung von Liqui Moly vor einem regulären Ölwechsel eingesetzt und bin mit dem Ergebnis sehr zufrieden. Die Anwendung ist einfach, die Wirkung sichtbar und der Motorlauf danach spürbar angenehmer. Anwendung & Handhabung Die Nutzung war unkompliziert. Ich habe die Motorspülung bei warmem Motor dem alten Öl zugegeben, den Motor etwa 10 Minuten im Leerlauf laufen lassen und anschließend wie gewohnt das Öl gewechselt. Die Anleitung ist klar verständlich, sodass keine Unsicherheiten entstehen – für die Anwendung ist kein Spezialwerkzeug erforderlich (der Ölwechsel an sich bleibt hier unbeachtet). Wirkung & meine Erfahrung Beim Ablassen des Öls war sofort erkennbar, dass die Motorspülung ihre Arbeit gemacht hat. Das Altöl war deutlich dunkler und gefühlt schmutziger als sonst. Nach dem Ölwechsel lief der Motor subjektiv empfunden ruhiger, besonders im Kaltstart wirkte er gleichmäßiger und leiser. Ich hatte zudem das Gefühl, dass der Motor spontaner auf Gasbefehle reagiert – kein dramatischer Unterschied, aber doch wahrnehmbar. Qualität Ich nutze Produkte von Liqui Moly schon länger und auch hier macht die Pro-Line-Serie einen sehr hochwertigen Eindruck. Mir gefällt, dass das Produkt explizit für Werkstattqualität steht und laut Hersteller keine Dichtungen oder Lager angreift. Fazit Für mich ist die Liqui Moly Pro-Line Motorspülung eine sinnvolle Ergänzung vor dem Ölwechsel. Sie kostet nicht viel, bringt aber mess- und spürbare Vorteile. Ich werde sie definitiv wieder verwenden – besonders bei Fahrzeugen mit höherer Laufleistung oder längeren Wartungsintervallen.
A**J
Limpieza interna profunda del motor; Calidad máxima, mejorando el motor de mi SEAT
Tengo un Seat IBIZA 1.9 TDI con 330.000 km. Cada año cambio el aceite, pero siempre antes de hacerlo, añado un limpiador de cárter de motor. En años anteriores solía usar el de Metal Lube, pero este año decidí probar el de LIQUI MOLY Pro-Line por dos razones: es más económico y es una marca alemana de confianza. Así que lo añadí con confianza, todo el tubo de 500 ml, con el motor apagado por supuesto, en mi Seat. Encendí el motor y lo dejé funcionando durante 15 minutos. Sinceramente, no recomendaría conducir mientras tanto. Lo mejor es dejar el motor al ralentí, de modo que el líquido haga su trabajo por sí solo: circula por todos los compartimentos donde circula el aceite del motor y limpia la suciedad, los residuos, las impurezas, etc. Luego drené el aceite, por supuesto por la parte inferior, lo dejé escurrir bien y añadí mi aceite preferido de Castrol. Después de este cambio, realmente noté que el coche va mejor, el motor ronronea como un gato. Además, cada 100.000 km añado un aditivo directamente al motor, he usado dos veces la Fórmula Motores Referencia 236 FM de Metal Lube. Definitivamente recomiendo este producto, LIQUI MOLY Pro-Line Lavado de cárter de motor. Gracias por leer mi reseña, espero que te resulte útil. 👍
R**R
Good flush for my engine
Good flush for my engine
O**R
ممتاز جدا جدا جدا
منتج قوي جدا وفعال شكرآ لكم
R**5
Güzel ürün.
Güzel ürün tavsiye ederim.
Trustpilot
1 month ago
2 weeks ago