You had the hood up the first time. Of course there's going to be a difference

It's quiet because you closed the hood

I used it in my Rover 75 diesel, tick over is a little quieter and smoother, and over the last month, topping the tank up every week, have noted an approx 2mpg improvement, used to be averaging 48 (and a bit) it’s now doing 50 and a bit, small improvement, but real. Impressive

We've had an engine with oil sump temp up to 140+C 5 times because of a novice driver, oil pressure begin to drop considerably the next day on the way back from track, so we change the oil at the next service centre we find and check the data log. Similar thing happened before, but they all ended up seizing the engine shortly afterwards if not caught on time, even so some damage is almost certain. But with Cera Tea, that engine is still running strong with no obvious damage ever occurred. It may have been pure luck, butI am impressed, and I'll stick with Cera Tec.

Good stuff!

if theres a db meter to measure the engine sound...i will be great. also theres a different sound level between open hood n the hood shut. Btw.. nice vid bro

To be "scientific" about it you have to compare apples to apples. So why start up with the hood open and on the second test do it with the hood closed. Also should measure the sound with a meter so you have some scientific parameter to record(db's). Also, especially on an older vehicle, a significant amount of "engine" noise is from belts, pulleys etc and this stuff won't have any effect on that.

I think a long term test is really what we need hear , over 100,000 miles , does it help , how many times a year should you put it in , once a year , every other year , every 100,000 miles , with every oil change , etc……

Liqui Moly's Ceratec is great. I use it for 5 years on every oil change in my NA 240 whp BMW 323ti compact and engine's running perfect with many hours on the track.

Joey, do you still feel the same way since your recording of liquid moli created additive?

Did you notice the difference in the engine when it gets near it's redline?

I use it in my Maxima VQ30DE sooooo smooth soooo quiet at 200,000 ks , also in my BMW M50 engine also 200,000 ks , i also use top quality Synthetic oils , but i know from my experience the Ceratec does make the engine idle smoother , cams shoe NO wear marks after 200,000 ks in both cars

its supposed to feel smooth rather than quite so judging based on loudness is not correct.

I also used ceratec but i felt that initially there isnt a much difference but when the car crosses 1000km you will feel the smoothness in engine.

Before you added the adfive in a ran the engine you had the hood up in second part of the video the hood was down which will dull some of the noise

Very funny...opened & closed test. Big different.

Was the initial start a cold start? That’s going to be louder. Comparisons should be made at running temp.

agree, working for me also in turno engine w 61k miles

Según lo que he investigado: Es un compuesto cerámico sintético a base de nitruro de boro, que forma una estructura molecular hexagonal una vez combinado con el aceite y sometido a temperatura nominal de funcionamiento del motor. Lo que hace, es sellar a nivel microscópico las imperfecciones en las superficies de contacto del motor que requieren lubricación, creando una película de 0.5µm, incrementando su resistencia a la temperatura, reduciendo la deformación progresiva de los materiales que incrementan la fricción y desgaste de las piezas del motor.

Is very little or none information about Ceratec and GDI turbocharged engines, perhaps more you add to the oil more stuff can buildup in the intake valves?.

You had the hood open before and closed after.

Here is a test for you. 1. Do an injector cleaning with Liqui Moly diesel purge. 2. Do an engine flush with Liqui Moly. 3. Change filter and flush with cheap oil. 4. Change filter and use the best Liqui Moly engine oil. 5. Ad Liqui Moly Ceratech. I promise you, your car will be like new. Do a test run after the diesel purge before oil change too feel the difference.

On the video with out product , the hood of the engine is open . Not on the second one, maybe that’s why the engine is a little quieter?

The colour like a cappucino 😂

Open tge bonnet!! Will be louder!🤣🤣

Do we need to remove the oil like 200ml to 300 ml to addup this?

Adjust your valves if you want a quiet engine. This is just suppose to give it better engine wear...something that isnt measurable without an oil analysis.

How about opening the hood for the after Ceratec comparison Einstein?

I hope you read the instructions... 300ml to 5 liters oil... ;)

What does it sounds like with the engine off?

K&N filter helps to save fuell..........

But , your vehicle hood was down 👎 on the after ?

Where do I add the ceretek into.. I know its a stupid question

You've started the car with the bonnet shut ...

How many litres of oil did you use the bottle of ceratec with?

Let me ask you a question, my friend. The Ceratec I have to put it in the oil change or I can put it without making the change? ..... thanks

Open hood, cold engine vs closed hood warm engine. DUH!

So.... did it work? So... would you recommend it? So...... what do you think?

so i added ceratec without shaking it first. Is it bad?

It's an old video but what is loud that's your water pump bearing

10 years old isn't old.

The before hood was open, after hood was closed WTF?

Still sounds like a tractor, have you tried lowering the recording volume, I know that definitely works.

You need to have your hood up after Ceratec. Not a fair comparison.

Appreciate the effort, but this is totally invalid due to bad control of the experiment. All other variables should be held constant if you're only gonna compare "noise". Also, if the bottle says start with fresh oil, I think you should, especially if you're gonna do a review about it.

This was not a test that would makee buy it.

Wtf my diesel is quieter )

The most unscientific thing I've seen....one has the hood closed and I'm not expecting Einstein to post additive videos

Lift the bonnet

Lol it sounds as loud with the hood down👎for the snake oil

awkward bud

Its a cool vid

Hahaahahahahahhahahahahahahaha

It's exacty same sound, even with the hood closed. Besides, engine sound does not reflect his health condition. My 130.000km cruze is running in 5w30 synthetic oil which is liquid like water. I would never add this white cream on it. Looks like a suicide. Thanks for the video anyway.

Not sure why you closed the hood but you wasted everyone's time.