Liqui Moly20004 Hydraulic Lifter Additive 300 ml

So far so good. Had it in my vehicle for 3 days now and it seems to be working as advertised. Quieted top end noise and lifter ticking has gone away. Worth the money imho

Noticed a smoother idle and better throttle response after adding this to my engine. Easy to use and trusted brand. Great product for regular maintenance!

⭐️⭐️⭐️⭐️⭐️Really reduces engine noise – very satisfiedI bought this product with the intention of reducing the sound of the engine in my truck (Ford Escape 2013), and the truth is that I was surprised how well it worked. Since I installed it, the engine noise has been significantly reduced, making trips much calmer and more comfortable. In addition, it arrived much earlier than expected and in excellent condition. It was easy to use and fit perfectly. Highly recommended if you are looking to improve the soundproofing of your vehicle.

First of all, I'm not going to give this product a terrible review. This product is NOT meant for mechanically damaged lifters or parts of a valve train and is not a magic "fix your engine additive." It's meant for if you have sludge or some crud causing a lifter to stick.(which at that point you should be changing the oil on a more regular basis). My 02 Suburban with the 5.3 has a bad lifter that's ticking pretty loudly. This product did nothing for it, but again that's because the mechanical roller on the lifter is chewed up, if it was just clogged up with debris, this stuff would probably take care of that, and stop the tick.I only give 4 stars because I didn't have a chance to test it on an engine that had a lifter tick due to clogged/dirty lifters, so I don't really know how it'd work on that. For $10 I'd definitely try it again if I had another lifter ticking, because if could just be debris and gunk!

I can't say enough about this stuff. I ordered it just on a whim hoping that maybe would do something as My four-cylinder 2009 Mitsubishi eclipse was ticking horribly. It took about 2 months of driving but all of a sudden one day I started it up and there was no tick and it's been going for some time now.

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.

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.

Works as engineered and improves fuel economy but can’t eliminate all lifter noise if the part in question is severely worn or damaged