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🔧 Silence the noise, unleash the smooth ride.
Liqui Moly 20004 Hydraulic Lifter Additive is a 300 ml high-performance liquid designed to reduce hydraulic lifter noise, clean valve bores, and improve oil lubrication. Compatible with all gasoline and diesel engines, including turbocharged models and those with catalytic converters, it ensures quieter, smoother engine operation and is easy to use during oil changes.





| ASIN | B0096Y6XPC |
| Best Sellers Rank | #3,832 in Automotive ( See Top 100 in Automotive ) #1 in Hydraulic Fluid Additives |
| Brand | Liqui Moly |
| Brand Name | Liqui Moly |
| Customer Reviews | 4.4 out of 5 stars 6,655 Reviews |
| Flash Point | 60 Degrees Celsius |
| Included Components | Liqui Moly 20004 Hydraulic Lifter Additive 300 ml |
| Item Type Name | hydraulic additive |
| Item Weight | 0.3 Kilograms |
| Liquid Volume | 10143 Fluid Ounces |
| Manufacturer | Liqui Moly |
| Material | Liquid |
| Model Number | 8367 |
| Number of Items | 1 |
| Part Number | 8367 |
| Unit Count | 1.0 Count |
| Warranty Description | Warranty |
J**Y
Good addition to my motorcycle maintenance
I’ve been using this Liqui Moly hydraulic lifter additive and it works well. it helped quiet down some noise from the engine during long rides, which was a nice surprise. the 300 ml bottle is convenient for regular use, and i feel it keeps the lifters running smoothly. simple to add during oil changes and seems to enhance engine performance without any fuss. happy to have it on hand for maintenance.
M**L
Free up sticky valves and hydraulic lifters.
Freed up sticky valves and lifters on my 1995 Mercury Mystique 2.0 Litre Automatic. The car had been stored for about three years and would not start due to sticky valves and hydraulic lifters. I applied one bottle along with an oil and filter change, turned the engine over manually for about 5 minutes until I could feel the engine running smoothly and no more snapping valves and springs. At that point it started right up running completely smooth and silent.
J**N
Very impressive in the MPG aspect.
I have seen the videos of this stuff instantly stopping lifter noises like most people looking into this product. However, it make the lifter noises less but didn’t eliminate all together. I added during an oil change on my wife’s 2012 GLK350 (128,000 miles on the car) She takes a trip once or twice a month that’s 52 miles one way. Usually when this takes place you can literally watch the gas gauge drop diving down the interstate. She was getting around 16-18 mpg and would fill up before she left and on her way back. After oil change and adding this she made her trip both ways and came back with over a quarter of a tank without stopping and filling up again. I was beyond impressed. I checked the read out on the computer when she told me and it was back to getting 21 mpg. Will definitely endorse and order again. This definitely solved a problem that I couldn’t see.
H**R
Hydraulic lifters
It makes your oil changes last longer and helped reduce the noise when we first added it.
E**O
Quality is good.
Have used this product before and have liked how good it works for my vehicles. Would recommend product. Good quality and price.
D**I
Really NEEDED for Chevrolet/GMC trucks 2012 thru 2020 with Adaptive Cylinder Displacement
On all Chevrolet/GMC gasoline V8 engines from 2012 thru 2020 that has the Adaptive Strategy cylinders cutoff. The lifters are failing causing issues and a VERY expensive repair bill. To keep that from happening or lessening the chance of happening Oil changes on a regular basis will help and by adding detergent additives to quality motor oils will keep the lifters clean and lessen the issues with the adaptive strategy system. I have been using Liqui Moly Hydraulic Lifter Additive to my Oil Changes to keep everything working as it was designed to do and keeps valve lifters clean and operational. Also lubricates other vital engine parts as well. It DOES NOT extend oil changes so oil changes when the oil change light appears on the dash display it is time to change oil and if driving off road and in dusty environments go with 3 months 3000 miles. GM Mastertech
M**N
Not recommended
Well I did read the reviews AFTER I bought it. It’s kinda like STP oil additive. It did nothing for my lifter noise.
A**R
Solid purchase
I work in a shop and just tried this product for the first time , worked better than expected. Will be using it on other applications.
M**H
Doesn't eliminate it, but it helps.
Works like a charm!!
O**O
Excelente Producto
Excelente Producto
C**S
Works
Seems to have quietened down my timing chain in my 2014 Audi 3.0TDI
S**É
Efficace sur 320i e36
Efficace sur une 320i e36. Le clac clac au démarrage a été complètement réduit et a quasiment totalement disparu. Néanmoins, il m'a fallu rouler un bon millier de Km après avoir mis l'additif pour qu'il commence à faire effet
チ**チ
評判通り。
約100km走行で、冷間時のエンジン始動の油圧タペットの音がしなくなった。当初は、騙されたと思って試してみたが良い評判は事実だったみたいです。
Trustpilot
3 days ago
3 weeks ago