Hydraulic Lifter Additive | 300 ml | Oil additive | SKU: 8367

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.

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.

Excellent additive for our older car with engine clicking. It fixed the problem almost immediately. This was recommended by the auto mechanic and it worked perfectly! Highly satisfied!

I put in a bottle of the Liqui Moly and aftr driving th vehicle the little "tic-tic-tic when it was hot was nearly gone! I was concerned that because product is quite a bit thicker (higher viscosity) than the 5W-20, I was cocerned that the additive would make all of the oil a single thinker viscosity by making the polimers that change the viscosity as other similar additives have done in the past. So, I called the product assistance line and asked that very question! The rep assured me that wouldn't be a the result of using this addiive! I'll keep an eye on the viscosity when the engine is cold since the viscosity is "supossed to be) about the consistancy of water (5W) tto get oil to all of the engine upon startup. To answer the questions below: the appearance is opaque, it is unknown if it acually reduced friction, the cost is about equal to other similar products, no leakage was observed, the vehicle engine continues to operate smoothly but there is no wayto determine if there has been any cleaning action! However, the apparent sticky lifter noise is somewhat lessened, so far! We'll see........

When you run a small delivery van 12 hours a day, little noises start to drive you crazy. I used this in our highest mileage van because the hydraulic lifters were ticking off and on. Poured it in with fresh oil during a quick lunch break. After a couple of routes, the ticking got quieter, then mostly went away. Engine feels smoother pulling away from lights now, which makes city driving less stressful for my drivers 👍. I know this will not fix worn parts, but as a cleaner and conditioner for the lifters it works well. Nice preventive maintenance for a busy small business.

I poured it in when I filled up with gas, then drove to visit my grandson the next morning. By the time i got to his place, the clicking was almost gone and the whole engine sounded smoother. That first quiet drive on the highway made me so relieved. I’m on a fixed retirement income, so avoiding a big repair feels huge. I’ve used it twice now, a few weeks apart. The car still isn’t new of course, but it runs nicer and I feel more confident taking it on longer errands. One little moment that really made me glad I bought it was being able to hear my audiobook again instead of that constant tap tap from under the hood 😂. For an older car that you’re trying to keep going a few more years, this has been very handy.

Came here after my 2012 Subaru Outback started ticking on cold starts. I picked up this Liqui Moly lifter additive before a weekend trail run in the Cascades, hoping to quiet things down for the drive to the trailhead. I warmed up the engine, poured it in with fresh oil, then drove about 150 miles that day. The tick got a tiny bit softer at first, then came right back the next morning. No change on longer highway stretches either. I like that the bottle pours clean and the size matches one oil change, but that is about it. For my car and those mountain runs, it just did not do much.

When my old Honda started ticking like crazy, I grabbed this Liqui Moly lifter additive after my roommate swore by it. I poured the whole bottle in during an oil change. After a short drive the ticking got way quieter. I’m glad my car sounds less embarrassed in the dorm parking lot now.

This oil treatment additive isn't snake oil, it actually worked. My timing chain and possibly oil pump drive chain were making noise. This product has within 20 miles of driving largely left them virtually silent. The engine hasn't had the best servicing by the previous owners, and I believe there was probably sludge in the tensioners and possibly valve drive gear. This product has made a huge difference. Matthew Dawood Khaghani

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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

Très bon produit avec cette additif mon problème est résolu.

Used in a high-mileage engine with intermittent hydraulic lifter ticking. After adding the product to fresh engine oil, lifter noise gradually decreased and engine operation became noticeably smoother. It is not a repair for worn mechanical components, but it is an effective cleaner and conditioner for hydraulic lifters. Excellent preventive maintenance product.