Best carbon cleaning product?

[Robscoe]

Okay before I say anything IÂ’m going to start with the fact that I donÂ’t have the time, or mechanical know how (I work 75 hours a week) to take off the manifold and I donÂ’t feel like paying for it to get done as of now. I know it doesnÂ’t work as well as that but itÂ’s better than nothing. IÂ’m looking to do the throttle body/vacuum method but IÂ’m not sure which would distribute it best. IÂ’ve been told Liqui-moly is possibly the best, would love opinions, and again, yes I know manual cleaning is the best. I know a lot of folks say sea foam and the like do nothing at all (which evidently isnÂ’t true it does some just not as much as manual) also, is it essentially pointless to run anything through the gas tank since itÂ’s TFSI? Thanks

[430hps4]

So... you basically "know" that anything that gets suggested won't be the best. All chemical companies will offer some level of improvement. But I'd doubt anyone has any measurable date.

BG Products is what I stock. Look into their 44k and CF5, for additives. If you feel like buying an atomization tool, BG has intake cleaning options.

[Jeevan]

Money in the drain. thanks for coming here

next?


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[MSq5]

Okay before I say anything IÂ’m going to start with the fact that I donÂ’t have the time, or mechanical know how (I work 75 hours a week) to take off the manifold and I donÂ’t feel like paying for it to get done as of now. I know it doesnÂ’t work as well as that but itÂ’s better than nothing. IÂ’m looking to do the throttle body/vacuum method but IÂ’m not sure which would distribute it best. IÂ’ve been told Liqui-moly is possibly the best, would love opinions, and again, yes I know manual cleaning is the best. I know a lot of folks say sea foam and the like do nothing at all (which evidently isnÂ’t true it does some just not as much as manual) also, is it essentially pointless to run anything through the gas tank since itÂ’s TFSI? Thanks

Given that you don't have time or interest in self-cleaning of valves manually, the best option is to find the closest local shop that offers BG Products GDI (gasoline direct injection) Performance Services.

No in tank, or even consumer "suck through the induction" chemical solution is going to do much to the hard crusted baked on carbon on the back side of intake valve on direct injection engines.

I've done valve direct injection valve cleaning with chemicals (manifold removed, valves exposed) with Chemtool B12. It works, still requires time consuming scrubbing with brushes. Messy. Also done walnut cleaning. Works better, but needs an adapter plate to keep the walnut and loose carbon in place.

Unless you can find someone to do the direct manual cleaning, find a BG Performance local shop with the equipment or have your Audi dealer ($$$$$$) do it.

[Theiceman]

It's likely not causing you issues Anyway. Leave it alone until you can pay for it to be done right.

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[esandes]

Okay before I say anything IÂ’m going to start with the fact that I donÂ’t have the time, or mechanical know how (I work 75 hours a week) to take off the manifold and I donÂ’t feel like paying for it to get done as of now. I know it doesnÂ’t work as well as that but itÂ’s better than nothing. IÂ’m looking to do the throttle body/vacuum method but IÂ’m not sure which would distribute it best. IÂ’ve been told Liqui-moly is possibly the best, would love opinions, and again, yes I know manual cleaning is the best. I know a lot of folks say sea foam and the like do nothing at all (which evidently isnÂ’t true it does some just not as much as manual) also, is it essentially pointless to run anything through the gas tank since itÂ’s TFSI? Thanks

Why? What's the issue?

[Robscoe]

The thing is, there’s not much carbon build up in my motor from what I can gather. From experience, when you have little to no build up to start, by putting motor flush in before every oil change, and doing a seafoam or similar spray every 10-12000 km, Compared to my friend with the same car similar miles who
Didnt do it, it kept the problem away a lot longer on mine, so while it’s not a big caked on mess I prefer to just do shit like this to keep it that way as it tends to be quite effective if the problem isn’t out of hand yet. But I’m just wondering if there was something better out there than seafoam.

[Robscoe]

Also kinda surprised that my car isn’t caked. Considering whoever the last owner was didn’t even have an air filter in jt st time of purchase. It has a catch can installed, would that prevent the build up?

[MSq5]

Also kinda surprised that my car isn’t caked. Considering whoever the last owner was didn’t even have an air filter in jt st time of purchase. It has a catch can installed, would that prevent the build up?

Catch can, if plumbed properly, may help. The EGR system that sends crankcase vapors back to the intake is one of the culprits of the problem. Pulling oil from that before it gets sucked past the intake valves and burned has got to help.

For maintenance purposes only, chemical treatment through the intake (not in fuel) might offer some slight benefit. BG's product is one. Another is CRC's GDI intake treatment. Seafoam would not be on my list, and none of them are in contact with the back of the intake valves to do much.

[esandes]

Just leave it alone. Catch cans only delay the carbon buildup. Plus they are known to plug up when it's freezing outside.

Here's an R8 carbon clean. This engine has atmospheric pressure air going in the intake ports and intake cylinder valve with that air swirling around carbon buildup.

https://www.audizine.com/forum/showt...y-surprise-you

Our cars have highly pressurized air swirling around dirty intake ports and valves. If a carbon clean makes no performance change on the R8 do you think it will to our A4s?

I had a new clean head installed a couple of years ago. Still performs the same with all of the carbon accumulated. There was no performance change before or after. Send me money instead and just pretend I walnut shell blasted your carbon away.

[Robscoe]

I’ve seen my friend use crc gdi spray on his a4 and there was a noticeable difference, it wasn’t life altering. So how do I maintain this catch can then, I don’t know how old the stuff in it is I’m just finding out now that’s what it is I guess. I’ll post a link to a picture of it. My car has lost fuel economy lately and I’m confused about the boost trying to sort if it’s low lol. My odb2 reader doesn’t make sense to me

- - - Updated - - -

https://imgur.com/a/j9cAj0H

[Jayz691]

Just leave it alone. Catch cans only delay the carbon buildup. Plus they are known to plug up when it's freezing outside.

Here's an R8 carbon clean. This engine has atmospheric pressure air going in the intake ports and intake cylinder valve with that air swirling around carbon buildup.

https://www.audizine.com/forum/showt...y-surprise-you

Our cars have highly pressurized air swirling around dirty intake ports and valves. If a carbon clean makes no performance change on the R8 do you think it will to our A4s?

I had a new clean head installed a couple of years ago. Still performs the same with all of the carbon accumulated. There was no performance change before or after. Send me money instead and just pretend I walnut shell blasted your carbon away.

Might not gain much power, but mine def runs smoother after I did it. Pretty cheap to DIY, so why not??...

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[EvolutionArmory]

Just leave it alone. Catch cans only delay the carbon buildup. Plus they are known to plug up when it's freezing outside.

Here's an R8 carbon clean. This engine has atmospheric pressure air going in the intake ports and intake cylinder valve with that air swirling around carbon buildup.

https://www.audizine.com/forum/showt...y-surprise-you

Our cars have highly pressurized air swirling around dirty intake ports and valves. If a carbon clean makes no performance change on the R8 do you think it will to our A4s?

I had a new clean head installed a couple of years ago. Still performs the same with all of the carbon accumulated. There was no performance change before or after. Send me money instead and just pretend I walnut shell blasted your carbon away.

The fact that you can’t believe carbon build up is an issue proves that you are in no position to give advice to other people.

The fact that many automakers have moved to dual injection systems like port over DI shows that this is a known issue in THE WHOLE INDUSTRY. 🤣 Esandes, do you think the earth is flat too?

[EvolutionArmory]

Carbon cleaning the valves isn’t going to gain power. It’s just a normal routine maintenance issue that affects people in different ways based on fuel used and driving habits. Carbon deposits affect the car at idle the most when the car is in a completely different fuel map and the tumble flaps are active. That’s why the car usually misfires at cold starts but drives perfectly fine throughout the day.

People who say carbon build up isn’t a problem really don’t have any idea how the car works, like our pal Esandes here.

Edit to add: Fuel quality can help a little but not much since the fuel never touches the valves and the carbon makes its way on to the valves due to valve overlap. When carbon on these EA113 motors first started being a big problem on cars still under warranty, Audi was very quick to blame customers not using top tier fuel but the truth is, it has very little to do with carbon build up on this motor. Using the best quality fuel you can use will help injectors from getting fouled but not really with the carbon deposits.

[Jeevan]

engine oil flushes dont clean carbon buildup as it mixed with oil not with fuel or air. Intake valves cannot be cleaned with just gdi cleaning sprays(its like urinating a very big tree and expect it to survive just on it). You can use gdi sprays every oil change to avoid carbon buildup once its cleaned manually by removing intake.

Mr. Pissandes, you dont even know how to change brakes and let alone do you want me to belive that you changed a head? why waste people time here? catch cans do clog in winter if you buy from ebay. I have a DD42 catchcan setup and it neveronce froze on me. I just have to dump the gunk even 4 to 5k miles.


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[esandes]

Might not gain much power, but mine def runs smoother after I did it. Pretty cheap to DIY, so why not??...

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The words you and Robscoe use are speculative in nature. I just told you I found zero difference with a highly modified 2+. I have no mods left to do besides a new turbo and I found no difference.

I had this car since new from the showroom floor. I provided dyno comparisons before and after.

My job here is done as an active member of AZ.

Robscoe, if you have some cash burning a hole in your pocket get a stage 1 tune or some fine whiskey instead. Use stock heat range spark plugs to help burn off the carbon. Google Italian tune ups and fine whiskey like Jack Daniel's.

All of the science is there despite psychological anecdotes of improvements. Spock would not approve of the carbon hype BS.

Removing the "snow screen" from the ram air intake will provide you more performance than a carbon cleaning. But don't mind me. I'm an active member here and obviously don't know what the fuck I'm talking about. The geniuses at audiforums.com may have better advice.

[EvolutionArmory]

I can’t tell if Esandes needs more drugs or less drugs.


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[Robscoe]

I should mention that The main issue inn having is hesitation.fuel economy too, I will say I had idled ALOT recently for several hours all together but, still shouldn’t be 20 l/100 KM or 11mpg in American terms. I fill with that vpower 91 octane at shell. I’m in Canada so that’s I believe equivalent to 95 in the states? Here is my little orb reader chart, just a brief one, but the calculated boost reading has me all fucked up. 7.5 bar???? https://imgur.com/a/dLTD4Ip

[EvolutionArmory]

Just leave it alone. Catch cans only delay the carbon buildup. Plus they are known to plug up when it's freezing outside.

Here's an R8 carbon clean. This engine has atmospheric pressure air going in the intake ports and intake cylinder valve with that air swirling around carbon buildup.

https://www.audizine.com/forum/showt...y-surprise-you

Our cars have highly pressurized air swirling around dirty intake ports and valves. If a carbon clean makes no performance change on the R8 do you think it will to our A4s?

I had a new clean head installed a couple of years ago. Still performs the same with all of the carbon accumulated. There was no performance change before or after. Send me money instead and just pretend I walnut shell blasted your carbon away.

Like usual, you missed the point of your own post. You posted a video of an R8 that is down on power, got a carbon clean and is still down on power.

Guess what Esandes? The car is still down on power because the clown in your video who can’t go a whole sentence without giggling like a 13 YO girl misdiagnosed his car. 🤣

It’s great that he carbon cleaned his car but he still needs to fix what is broken 🤣🤣🤣




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