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Liqui Moly

Liqui Moly 20004 Hydraulic Lifter Additive 300 ml

    • Based on 4,763 reviews
Condition: New
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Availability: In Stock.
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Arrives Thursday, May 2
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Size: 300 ml


Features

  • Improves the lubrication properties of the oil
  • Cleans valve bores
  • Suitable for use in vehicles with turbochargers and vehicles with catalytic converters
  • Prevents engine noises caused by hydraulic tappets
  • Flash point: 60.0 degrees_celsius

Description

Liqui Moly's Hydraulic Lifter Additive damps the noise produced by worn hydraulic lifters. Cleans valves and holes in the lifter and promotes optimum operation. Add to engine oil, for all gasoline and diesel engines with and without turbo-charging. Tested for compatibility with catalytic converters. Liquid Moly's Hydraulic Lifter Additive can be mixed with all commercially available engine oils. 300 ml is sufficient for up to 6 liters (6.34 quarts) of engine oil.

Manufacturer: ‎Liqui Moly


Brand: ‎Liqui Moly


Model: ‎20004


Item Weight: ‎10.6 ounces


Product Dimensions: ‎4.72 x 2.36 x 2.36 inches


Country of Origin: ‎Germany


Item model number: ‎8367


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Machined


Manufacturer Part Number: ‎8367


OEM Part Number: ‎2770


Date First Available: August 11, 2014


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If you place your order now, the estimated arrival date for this product is: Thursday, May 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews

    • For my specific problem, it has worked perfectly for a full year.
Size: 300 ml
An older boat, with twin Chrysler Marine 360's, with intermittent hydraulic lifter noise at idle on starboard motor. Isolating the noise to the specific location suggests one or two lifter(s) are (occasionally) remaining to some extent collapsed, resulting in increased clearance and thus noise. At higher RPM this disappears, probably as a result of increased oil pressure. Pressure gauges are in PSI and indicate that Oil pressure in the motors is within all specs at idle and speed with a solid margin of safety. Maintenance records indicated a sticky lifter(s) in past, but are incomplete in regards to service performed. Vessel is used and on third or fourth owner with rebuilt blocks. Both have sound compression and run smoothly with about 500 - 600 hours on the rebuild. How much was done and by who is unknown. 360 engines are flat tappet cams and are run on high ZDDP Oil specifically for this type of motor. To see if the lifter(s) could be freed up or performance improved, I added the Liquid Moly Hydraulic lifter additive to a fresh oil change. After an extended run of several hours, no lifter noise has was heard. The oil appeared to change color to a darker dirty color more quickly over the next few weeks of testing. I speculate that this is the result of the additive performing the described cleaning action. As a result of the discoloration, an earlier than normal oil change (1 month) was performed based on appearance (not analysis) and the additive used again. The theory was if we dissolve the crud; then remove the crud and start clean. Seems to make sense? A third change has just been performed after a full year/season, and still no noise. I continue to add 1 can per engine at each full oil/filter change. There was no desire to deal with the expense of new lifters/cam issues on an older rebuilt flat tappet motor. The engines are maintained carefully, and one can will be added to the appropriate range ZDDP oil at each change. My experience indicates: If the motor is mechanically sound, and lifter binding or clogging is the apparent cause of issues. Then this additive appears, as with many of the reviews, to restore the lifters to improved performance and quieter operation. As a comment. No engine additive can improve a problem if the internal engine condition is not suitable. In other words it can only improve the problem it is designed to fix. For this additive: low oil pressure, excessively damaged or fouled lifters, too much or too large dirt to overcome, metal particles in the oil, etc. could limit or prevent successful noise reduction. That's not a product issue, it is that these products perform a specific action and cannot work miracles on a junk motor. Negative reviews don't always take this fact into account. It can't rebuild a seriously damaged motor. It appears to clean a basically sound older dirty/worn one and provide improved lubrication and performance. It is not "Snake Oil". in my experience and did the job we asked of it extremely well. I first verified the basic criteria of engine vacuum, oil pressure, and smooth idle, etc. Then it was not hard to propose the cost of a new cam/lifter set vs a try at cleaning them up. I would never change lifters alone on a flat tappet marine motor, so we would have had to change the camshaft and lifters in place, then break in. I do not claim to be an engine expert, but for this specific situation, the thought was what have we got to lose? So far after a full season of run, it has been a great success. I will continue to use it at each oil change. ... show more
Reviewed in the United States on January 4, 2023 by Captain Mark
    • Really works!
Size: 300 ml
1994 1.8 liter Miata which is famous for loud lifter noise and this one was no exception. Added this can to the oil and drove. After 10 minutes at a stop light, I could not hear the engine. I looked at the tachometer and it was still running. A bit of noise at initial start up, but goes away after 15 seconds. Have only put 20 miles on it, but will buy again. ... show more
Reviewed in the United States on November 18, 2023 by Brian
    • It Works!!
Size: 300 ml
I have a 2002 Dodge Durango with a 4.7 engine and about 116k on it. It’s developed a valve tap during the past year or so. I tried a Lucas Oil additive that did nothing, although I consider many Lucas oil products to be good. I added the 300ml bottle of Molli to my engine (when it was down about a quart). The tap immediately got quieter. It didn’t fo away but it’s definitely half of what it was, if not quieter after only 5 miles or so of driving. ... show more
Reviewed in the United States on October 11, 2023 by B. Colonna
    • Great product
Size: 300 ml
Absolutely amazing product highly recommended
Reviewed in the United States on December 19, 2023 by evgeny elogoodin
    • Didn’t perform
Size: 300 ml
I have a slight knock problem. I used the the product to help eliminate the knock issue. Only worked for 2 days. Do I think it’s worth it? I’m really not sure. The noise is still there. Not a perfect product.
Reviewed in the United States on October 21, 2023 by T. Thrash
    • Really works
Size: 300 ml
I had doubts about this product working on my lifted 1995 Kia sportage with oversized mud tires. This engine has always made a ticking or tapping noise, Days later it is still working and still no ticking noise from the engine.
Reviewed in the United States on December 13, 2023 by Billie
    • Possibly fixed my issue
Size: 300 ml
Ran a bottle of this through my 2010 Hyundai Accent which had a nasty yet intermittent knocking to the engine upon startup, especially when cold. It seemed to make the problem worse for the first 1000 miles, then I changed the oil/filter and now it's quiet on startup. (Also used a thinner oil so that could also be a factor) ... show more
Reviewed in the United States on January 6, 2024 by Brockett
    • Not the Miracle Formula i hoped for
Size: 300 ml
I live in Arizona and have a 1994 Ford Bronco 5.8 Engine and had a lifter noise for years. I mostly drive the truck offroad and less than 4000 miles a year. I have 253,000 miles on it and every year before May I start doing my maintenance on it for the summer. I was looking for the Best item to use to quiet the noise because it was getting worst. I looked athrough a lot and would read the Feedbacks and this one had a high rating. I bought a can of this and a can of the motor flush. When it got here I realized it was from Germany and had English and German instructions on the can. First things first, according to the can it's best to do the motor flush first and get everything clean. So what you have to do is doit yourself. Get whatever oil filter you're gonna use and the oil. I use a high mileage oil. You pour in the motor flush and let it idle for 10 minutes. Don't drive it or race the engine, just let it sit and idle. Which I did exactly and then drain the oil. I was amazed at how black the oil was an saw little pieces of dried oil pour out. I kept the plug out and let it drip till nothing more came out. Then I took the oil filter off and put it in the box the new one cam in to dump later. I put on the new filter and poured this Liquid Moly Hydraulic in first and added the rest of the oil needed. I started up the truck and for the first few hours was stunned and amazed because all the lifter noise was gone. I was very please. The next morning it was about 35° and when I started the truck the lifter noise was back but not as loud. I figured sitting overnight all the oil is in the pan so this could be normal until the oil warms up and spreads. Drove it a few hours and every time I stopped at a light I heard the noise. Needless to say it's been weeks and the lifter noise is back. This isn't the miracle formula I was hoping it to be. That's why I gave it one star. ... show more
Reviewed in the United States on February 12, 2017 by RawGold

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