Liqui Moly 20004 Hydraulic Lifter Additive 300 ml

I’m really impressed with this hydraulic lifter additive! After adding it to my engine, I noticed a significant reduction in ticking noise almost immediately. The engine sounds much smoother and quieter now. It’s very easy to use—just pour it in, and that’s it. No complicated steps or tools needed. I also feel like my engine is running more efficiently overall.

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.

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.

It makes your oil changes last longer and helped reduce the noise when we first added it.

Have used this product before and have liked how good it works for my vehicles. Would recommend product. Good quality and price.

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.

My older Escalade has a tapping noise at startup and it subsides after I drive for a while. I thought this product may reduce that noise, but it didn’t help at all. My issue is likely bigger than just adding something like this.

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.