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

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.

I added the 300 ml bottle during an oil change and followed the directions on the label. I didn’t expect an instant fix, so I paid attention over the next several starts rather than judging it on the first trip. The ticking seemed less noticeable after a few drives, especially during that first minute after starting. It hasn’t turned the car into a new one, and I still hear a little noise now and then.The bottle was straightforward to use, and I appreciated that I could add it as part of the oil change instead of setting aside another afternoon for a separate job. I work long stretches at my desk, so having the car ready for supply runs matters. I’m glad I bought it because the quieter cold starts made those early errands less distracting. I’ll keep an ear on the engine and follow the usual maintenance schedule rather than treat an additive as a substitute for repairs.

The first morning after that, the tapping sounded less sharp as I backed out to pick up coffee and the day’s receipts. It did not turn the van into a new vehicle, and I still listen for the noise, but the change was noticeable enough to make me glad I tried it. The engine starts normally, and I have not had to spend extra time wondering whether that sound is getting worse.

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........

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 bought this for our older family car after hearing a brief tapping sound on cold starts. I added it during an oil top-up in the driveway while the kids watched cartoons in the living room. The 300 ml bottle was easy enough to pour, though I went slowly to avoid spilling oil on the engine cover. After a few drives, the ticking seemed less noticeable at startup, but I still hear it now and then, so I wouldn’t treat this as a fix for a mechanical problem. I also wish the bottle gave clearer guidance on how much oil should be in the engine before adding it. It was a straightforward step to try before booking a shop visit.

Worked wonders! I own a 2014 1.8 Chevy Cruze and a mechanic friend of mine told my the lifters in my car were the reason behind an odd but hard rattling noise coming from the engine. A sound that I could hear even when driving my car and idling it with the hood down. I changed the oil and mixed the whole bottle of Liqui Moly with some vavoline and after a few dozen minutes of running that thing didn’t make a sound, and I noticed some mild improvement in my driving performance as well. Great product and great German quality.

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.

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

価格も手頃で効果もあり助かりました。ありがとうございました。

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

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.

ممتاز واصلي انصح اي مالك سيارة بالتجربة حالة المحرك ٨٠٪ اواقل او اعلي ويفضل وضعة مع زيت تخليقي 5W40 او 5W30 او 10W40