Best intake valve cleaner MADE IN GERMANY!!!

Claims to clean valves in 30 seconds. Best intake valve cleaner made in GERMANY!!! mannol? we find out if this is the best fuel system cleaner or if there is a much better fuel additive. can we solve or fix a bad idle find out on this channel we fix engine vibrations or surging engine. with fuel cleaners you can clean intake valves on a gdi or direct injection engine like seafoam or marvel mystery oil.

[timiracko]

Those valves are clogged up way past the "miracle spray cleaners" stage

[netsektor]

You didn't even follow the whole instructions, that tube was there for a purpose.

[mikehigby]

Pull the intake manifold, hook up a remote starter and seat 2 valves at a time, soak in a non evaporative solvent for 30-45 mins, wrap a flathead with a rag and lightly scrape. Once clean, wipe up as much as you can with a rag and blow out the rest with an air gun

[whitedovetail]

This was interesting due to the fact that it clearly didn't do squat in my opinion. Thanks for posting!

[STYLITALWAYS]

One thing is for sure... that's one clean ass throttle plate 😆😆

[TrailVapor]

Mannol 9873 intake cleaners id safe to use with teflon safe. BMW use teflon washers in the VANOS
This application was not done correctly: maintain air filter in-situ (remove MAF sensor to protect it) 30 seconds single burst @ 2500rpm + 1 hour hot soak + 10 mins+ fast drive.

[yangyang-etwn]

since they made it with nylon manifold, i say open a thread hole infront of every intake valve where you can seal it back with screw and gasket maker, after you brush and vacuum it.

[kevinmurphy]

What would happen if you followed the directions and used the straw, go through the maf and sprayed for the full 30 seconds?

[NateThatGuy]

Good stuff if there is only minor buildup. I recommend this service every 10k miles to prevent buildup. This one is definitely too far gone for chemicals.

[NordicDan]

The reason the intake runners and valves are this nasty in the first place is sludge and oil coming in through the PCV combined with sooty exhaust gas from the EGR. Eliminate that once they're clean and you'll rarely have to worry about that. With smog testing going bye bye in America (yay!) you can easily do an EGR delete which will in most cases help the engine actually run better overall, and there are several different PCV catch cans on the market that are inexpensive and easy to mount, or you can easily build your own. I built my own about 15 years ago and it has worked wonders. The only caveat is that you have to periodically empty them as they collect oil, and if you have more blowby than normal (my engine has 300K miles on it so that's the case with me) you have to be on top of monitoring it. Mine has a clear bowl that I marked with for a maximum level, so I can easily look and see when it has to be emptied.

[SavageBunny]

That carbon buildup is hard to take off with cleaner and a wire brush, a spray cleaner ain't gonna do a damn thing.

[gregnixon]

I don't see any difference at all. You videos are an anti-commercial for these products.

[steadyeddie]

I think we all knew that a carbon cleaner spray passing by a caked up valve stem at 200 mph was not going to remove the carbon. You're way past that stage. But thanks for the confirmation. And let us know what kind of bore camera you used. The clarity is great.

[wavehaven]

Thought those valves would be shinny like chrome.
Its a can of... Fail

[Penskeeee]

It's better to perform Walnut blasting every 60k km / 35k miles because with these cleaners, the built up carbon that were dislodged will be running through your cylinders and exhaust and could cause serious damage to your cylinders and/or cat converters.

[-MrRichBiker]

After this job is done that's going to be the cleanest snorkel I've ever seen..lol

[plop]

Why not spray directly onto the valve's? Engine off. As with the bore scope. Let it sit 10 minutes. Then check

[upgrader]

No way it can do anything without a heat soak, then running it for a good amount. I used CRC, let soak for an hour. Then drove around 30 minutes. Then I took a 600 mile trip.

My car is running like new. I'm not going to disassemble jonny 5, but the power increase and smooth acceleration speaks for itself. Use CRC, and make sure to follow the instructions. If you can do like I did, and take a long trip beforehand, you're going to be happy.

[nickbrice]

I had this on a BMW 3.0 with 80k, only fix was removed inlet manifold and blasts the ports 1 at a time with walnut shells. Not cheap but like new after.

[danielmillard]

If that's hardened carbon forget it! You'll never get it off and it'll damaged your engine if you do.