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Old Feb 19, 2008 | 04:54 AM
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Default Removing carbon buildup

The modern method (without opening the engine) is to use products like GM Top Engine Cleaner.

Older methods are:
- ATF mixed in the oil
- ATF mixed in the gas
- Brake fluid misted in the intake system (similar to the GM Top Engine Cleaner procedure)
- Water misted in the intake system (similar to the GM Top Engine Cleaner procedure)

Who know how good / bad are those methods?

Stefano
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Old Feb 19, 2008 | 06:02 AM
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i heard Seafoam is a way to go
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Old Feb 19, 2008 | 06:16 AM
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I heard... facts?
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Old Feb 19, 2008 | 07:38 AM
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Huge sticky on seafoam... its the way to go
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Old Feb 19, 2008 | 10:58 AM
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Originally Posted by tici
The modern method (without opening the engine) is to use products like GM Top Engine Cleaner.

Older methods are:
- ATF mixed in the oil
- ATF mixed in the gas
- Brake fluid misted in the intake system (similar to the GM Top Engine Cleaner procedure)
- Water misted in the intake system (similar to the GM Top Engine Cleaner procedure)

Who know how good / bad are those methods?

Stefano
Honestly, I would just use Seafoam. That's specifically what it is made for. I know ATF has detergents in it, but can't imagine it would be as effective as seafoam. Brake fluid seems like a terrible idea, and water sounds like a hydrolock waiting to happen.
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Old Feb 19, 2008 | 02:00 PM
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I just did the seafoam process to my car and runs alot smoother now. It fixed an idle problem I had. My engine has 90k on it. Seafoam FTW
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Old Feb 19, 2008 | 02:27 PM
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Yep, I hear you guys. But over here we don't have the same stuff.
No one has a liquid for the intake, maybe a spray that will cost $30 - $40 !!!
No Seafoam, no GM stuff :-(
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Old Feb 19, 2008 | 04:30 PM
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I'm with everyone seafoam it.
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Old Feb 19, 2008 | 05:47 PM
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Again, we don't have this stuff here. We just have additives to add to the fuel.
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Old Feb 19, 2008 | 05:52 PM
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i would go with seafoam if i were you! or if u cant do seafoam! there is another way to mix up ingrediants on how to make a engine cleaner! i will ask my friend, ill post back in a little bit!
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Old Feb 19, 2008 | 08:59 PM
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Originally Posted by tici
Yep, I hear you guys. But over here we don't have the same stuff.
No one has a liquid for the intake, maybe a spray that will cost $30 - $40 !!!
No Seafoam, no GM stuff :-(
Can you get someone from the US to mail you some?
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Old Feb 20, 2008 | 01:26 AM
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ok the main ingrediant is ammonium! with ammonium as a base you mix in, alcohol highest isopropal %, fuel injector cleaner, some brake cleaner, some marval mistery oil or WD-40 or ATF, these are the main ingrediants into cleaning the engine! if u feel you should add other ingrediants you could!
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Old Feb 20, 2008 | 08:56 AM
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You may look for the MotorVac CarbonClean system. (They distribute internationally http://www.motorvac.com/) The CarbonClean treatment is similar to GM's top engine cleaner, except the service is more extensive and cleans more of the fuel system. From my reading, it performs similar duties as Seafoam but is much faster to perform and easier to do. (The full treatment cycle is complete while the car is in the shop - no worries about driving off gas, etc.) The downside is that you need a mechanic to hook up a special machine to do the work.

I paid a local shop in the US $85 for the treatment and got an additional 3 miles per gallon (1.25 kilometers per liter) for all types of driving. The treatment paid for itself in 8000 kilometers. I can imagine that you would have a much faster return on the investment given the gas prices in Europe!

I believe BMW also endorses a similar treatment. You may find a dealer in Europe who offers a similar type of product.
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Old Feb 21, 2008 | 04:20 PM
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Originally Posted by keliente
Can you get someone from the US to mail you some?
It should be hidden in another can or a bottle... you need a lot of papers to ship chemicals oversea. For a bottle of "wisky" they won't bother
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Old Feb 21, 2008 | 11:29 PM
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Originally Posted by keliente
Honestly, I would just use Seafoam. That's specifically what it is made for. I know ATF has detergents in it, but can't imagine it would be as effective as seafoam. Brake fluid seems like a terrible idea, and water sounds like a hydrolock waiting to happen.
a hydrolock can happen with seafoam also if you add it to quickly. but yea you can use water.
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Old Feb 21, 2008 | 11:53 PM
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Originally Posted by tici
It should be hidden in another can or a bottle... you need a lot of papers to ship chemicals oversea. For a bottle of "wisky" they won't bother
that would be some pretty foul-smelling whiskey!
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Old Feb 22, 2008 | 06:40 PM
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we used to use water in a spray bottle for our genI's
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Old Feb 24, 2008 | 10:57 AM
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Originally Posted by letsrun97z
we used to use water in a spray bottle for our genI's
Can you describe how?
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Old Feb 24, 2008 | 06:23 PM
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Top engine cleaner work on most customers cars. Pour the bottle of top engine cleaner slowy into the vacum off the brake booster. Rev the motor for about 5 to 6 seconds and let the car sit over night and let the engine cleaner do it magic. The next moring you should fell and hear a big differance. Works best on the Cadilliac Northstar motors. Seafoam is good stuff too.
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Old Feb 24, 2008 | 11:32 PM
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seafoam every 20k works wonders or once a year on a oil change.. put it in let it sit, idle for a bit then drive the **** out of then oil change
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