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🛠️ Unlock your engine’s hidden potential — because your ride deserves the best flush!
LIQUI MOLY Pro-Line Engine Flush is a concentrated, unscented oil additive designed to clean and flush the oil systems of petrol and diesel engines. A single 500 ml can effectively treats up to 5 litres of oil, removing deposits from critical engine parts like lubrication holes and piston rings. This flush reduces engine noise, lowers oil consumption, and improves compression, helping to restore engine performance and longevity. Trusted by thousands with a 4.7-star rating, it’s the professional’s choice for maintaining a smooth, efficient engine.






| ASIN | B001CZSG94 |
| Best Sellers Rank | 167 in Automotive ( See Top 100 in Automotive ) 1 in Engine Oil Additives |
| Brand Name | Liqui Moly |
| Contains Liquid Contents? | Yes |
| Country of Origin | Germany |
| Customer Reviews | 4.8 4.8 out of 5 stars (13,708) |
| 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 | 0.41 Kilograms |
| Manufacturer | Liqui Moly GmbH |
| Material Features | Unscented |
| Material Type Free | Silicone Free |
| 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 |
| 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!
N**N
Added protection.
Used it in a BMW N55, The engine was smoother and bit more responsive. Engine start up too is bit quiter . Its premium quality oil additive and suited for premium car engines. Most of all I think the additive works in the background secretly protecting you engine and giving it a long life.
L**A
Oil system clean and smooth performance
I added this product to the old oil right before the oil change and let the engine run at idle for about 10 minutes. The drained oil came out much darker and thinner, showing that the deposits inside had been dissolved. During the process the engine ran smoothly with no noise or fluctuations, and after adding the new oil it felt quieter and more stable. One 500 ml can treats up to 5 liters of oil, and it works with both petrol and diesel engines which is very practical. The only important point to note is that the oil and filter must be changed immediately after the flush.
L**I
Cool
Very good product. I recommend the seller. Fast delivery, everything as described. 100% satisfaction.
L**L
Back to translucent oil again. It cleans well.
Used to flush out the oil on our R56 mini before refilling. It seems to have worked very well as we're back to struggling to read the level of clean oil on an impossible to read R56 dipstick. Now having to rest the dipstick on kitchen towel again to see how far up the damp oil is sitting! The old oil was pretty black even though it was within service limits, but it's now back to clear, even after a short run. The Mini dipstick is a pain to read, I have no idea why anyone reinvents the wheel, as a flat dipstick works the best.
D**L
Good value product.
🔎 This flush engine product comes in a small bottle. Needs to be poured into your engine( like a regular oil ) before the planned oil change. 🧡 It was my first time using engine flush product( recommended by a friend ). I poured it into the engine and let it run, as recommended on the bottle. When removing oil, it was more smooth, and I hope cleaned the engine better, than just changing the oil. It is easy to use, effective and I would recommend using it. 💲 A good value for money product.
م**ن
Wonderful
Excellent.
W**E
Perfect as always
G**Y
Eccellente prodotto, si aggiunge all'olio motore (caldo), si lascia girare al minimo, con qualche piccola accelerata a 1200-1300 giri per farlo circolare bene, per10-15 minuti, poi si scarica l'olio esausto che sarà liquidissimo, sostituire anche il filtro dell'olio che sarà intasatissimo da tutti i detriti e depositi di olio che il prodotto a disciolto dal motore, riempire con l'olio nuovo. Il motore riacquisterà compressione perché il prodotto avrà rimosso anche le incrostazioni dalle fasce elastiche, nei diesel ridurrà la fumosità (nel mio caso azzerata su Golf 5 1.9 TDI), turbina e motore meno rumorosi e più brillante. Trattamento assolutamente da fare ad ogni cambio d'olio!
B**.
Esta marca alemana es garantía de calidad. Uso este limpiador de motor antes de cada cambio de aceite de motor. El proceso es muy sencillo: echarlo directamente en el cárter del motor (tapón de llenado de aceite) y arrancar el motor. Lo ideal es echarlo una vez que el motor esté a temperatura de servicio. Este punto permite que la temperatura del motor ayude al detergente que lleva el producto a eliminar las impurezas y depósitos del interior del cárter ocasionados por el propio desgaste del aceite y hollín generado durante la combustión. Mi experiencia es magnífica. Lo uso siempre y he podido comprobar que el aceite usado sale menos denso, lo que indica que liquidifica el aceite y hace que el limpiador llegue a más zonas del motor. En mi caso, aunque en las instrucciones simplemente se dice que se deje el motor al ralentí, yo uso el coche durante unos 20 Km para que haga más efecto. Por cierto, ni se os ocurra usar el producto y no hacer el cambio de aceite y de filtro posteriores (además de que el uso prolongado del producto puede dañar vuestro motor, sería como irse a hacer deporte y cambiarse de ropa después sin ducharse). Producto 100% recomendable que hace lo que promete. Tiene mis 10 este producto. 100% recomendable. 👍👍👍 #JJ'sLoRecomienda
ا**د
منتج ممتاز جدا يقوم بتنظيف المحرك من الداخل بشكل ممتاز وآمن على المحرك بدون اي مشاكل استخدمت منتجات ثانيه قبل سنه وسببت مشاكل وتهريب زيت من المكينه لكن هذا امن وانصح فيه
R**5
Güzel ürün tavsiye ederim.
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