GM Decarbonizer
Drifting
Joined: Jan 2001
Posts: 1,347
Likes: 4
From: Slidell La
Originally Posted by Z.06
Don't get talked into this stuff too fast.
My experience has not been positive. My car is a 2001 Z06. It normally lives in the Houston area and runs fine on 93 octane premium. Last summer I took it on a long cross country (5500 mile) trip and it pinged like crazy on the 91 octane fuel available in several states.
My experience has not been positive. My car is a 2001 Z06. It normally lives in the Houston area and runs fine on 93 octane premium. Last summer I took it on a long cross country (5500 mile) trip and it pinged like crazy on the 91 octane fuel available in several states.
99 Nassau Blue
Burning Brakes
Joined: Jun 2005
Posts: 1,188
Likes: 13
From: Wallingford Vermont
I just did the Sea Foam to my 93,000m 1986 coupe. HOLY CRAP 
I expected some smoke, not a full blown smoke screen operation! Thank goodness I did this at work and not at home. 
After it finally cleared, I closed up shop to head home. A mile down the road I started to get my foot into it. GEEZ! another smoke screen trailing me down the road.
I got my foot out of it and the smoke lessened and finally stopped about five+ miles later.
The kicker is my engine actually does run smoother. I don't normally buy into snake oil products but it definately did something. Gonna try another bottle maybe tomorrow. Gotta find a witness
I expected some smoke, not a full blown smoke screen operation! Thank goodness I did this at work and not at home. After it finally cleared, I closed up shop to head home. A mile down the road I started to get my foot into it. GEEZ! another smoke screen trailing me down the road.
I got my foot out of it and the smoke lessened and finally stopped about five+ miles later.The kicker is my engine actually does run smoother. I don't normally buy into snake oil products but it definately did something. Gonna try another bottle maybe tomorrow. Gotta find a witness
Burning Brakes
Joined: Oct 2001
Posts: 1,116
Likes: 0
From: Alhambra Calismognazifornia, in the country everyone comes just to complain but won't go back home!
Originally Posted by DanZ51
I just did the Sea Foam to my 93,000m 1986 coupe. HOLY CRAP I expected some smoke, not a full blown smoke screen operation! Thank goodness I did this at work and not at home.
After it finally cleared, I closed up shop to head home. A mile down the road I started to get my foot into it. GEEZ! another smoke screen trailing me down the road. I got my foot out of it and the smoke lessened and finally stopped about five+ miles later.
The kicker is my engine actually does run smoother. I don't normally buy into snake oil products but it definately did something. Gonna try another bottle maybe tomorrow. Gotta find a witness
I expected some smoke, not a full blown smoke screen operation! Thank goodness I did this at work and not at home. After it finally cleared, I closed up shop to head home. A mile down the road I started to get my foot into it. GEEZ! another smoke screen trailing me down the road.
I got my foot out of it and the smoke lessened and finally stopped about five+ miles later.The kicker is my engine actually does run smoother. I don't normally buy into snake oil products but it definately did something. Gonna try another bottle maybe tomorrow. Gotta find a witness
how bad is this smoke screen thing??? 
i'm thinking of doing this since i'm at about 84k but am i gonna smoke people out of their homes??? 
Burning Brakes
Joined: Oct 2004
Posts: 925
Likes: 4
From: EXTON PA
does it work?????
without tearing down the engine i can not be exact, but the results of using the GM product is dramatic. You pour two cans in as directed in the air intake from the PCV. Then let sit for 24 hrs and restart. At restart clear everything out of the way from your exhaust. All hell brakes loose with smoke that looks a Navy Ship's smoke screen. There is a ugly black liquid that is also exited and it is alot that you do not want to get on things.
Does it work....While I believe so and if not it is the greatest show on the start up. You should plan to change your oil after this.
Does it work....While I believe so and if not it is the greatest show on the start up. You should plan to change your oil after this.
Drifting
Joined: Jul 2003
Posts: 1,313
Likes: 0
From: Redwood City, CA
Originally Posted by Mike04
At what mileage would decarbing be recommended?
I just did the Sea Foam on my 01 Z06 with 30K miles and I am getting better mileage. I do the decarb at every oil change,which is about every 5-6K miles. Snake oil....I don't know.
But I definitely enjoyed the smoke show!!
As mentioned,if you haven't decarbed in awhile or ever,there will be A LOT of thick smoke,esp. when you romp on it while driving. And I do suggest you drive it and get on it hard to redline to clear it out. Don't park and rev for too long....neighbors will call the fire dept. Take it somewhere more secluded. And change your oil immediately after the decarbing!
Drifting
Joined: Jul 2003
Posts: 1,313
Likes: 0
From: Redwood City, CA
Originally Posted by cmeflyby
how bad is this smoke screen thing??? i'm thinking of doing this since i'm at about 84k but am i gonna smoke people out of their homes??? It'll be BAD, but it's actually pretty fun. Warn nearby people or take it somewhere far before getting on it hard.
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Team Owner
Joined: May 2001
Posts: 25,044
Likes: 1,265
From: Virginia
St. Jude Donor '11
Originally Posted by Dirty Howie
Can you hurt anything by decarbing??
It doesn't have any affect on seals, cats or rings??
DH
It doesn't have any affect on seals, cats or rings??
DH
Team Owner
Joined: May 2004
Posts: 26,345
Likes: 231
From: SoCal
Originally Posted by Yello95
44K will not harm any seals, etc...I talked with the cheif engineer for BG and he also put it in writing and sent it to me
Do you just add it to tank of gas or is it a decarb proceedure.
Do you have to change your oil afterwards
DH
Last edited by Dirty Howie; Sep 12, 2005 at 12:51 AM.
Racer
Joined: Oct 2001
Posts: 442
Likes: 1
From: San Clemente CA
GM Top Engine Cleaner Results
Hi,
My '02 C5 engine burns some oil and the piston slap was getting louder when cold.
I used GM Top Engine Cleaner #1050002 at ~20k miles and removed the heads a week later. The combustion chambers were clean down to the metal on the spark plug side of the chamber near the intake. This is the wall washed by the intake flow. The rest of the chamber had some deposits, as did the piston tops. The intake ports and intake manifold where completely clean of deposits or oil.
The octane requirement definitely reduced and the piston slap noise reduced.
Good luck,
Steve
My '02 C5 engine burns some oil and the piston slap was getting louder when cold.
I used GM Top Engine Cleaner #1050002 at ~20k miles and removed the heads a week later. The combustion chambers were clean down to the metal on the spark plug side of the chamber near the intake. This is the wall washed by the intake flow. The rest of the chamber had some deposits, as did the piston tops. The intake ports and intake manifold where completely clean of deposits or oil.
The octane requirement definitely reduced and the piston slap noise reduced.
Good luck,
Steve
