Alright, well, i know there have been tons of threads about seafoam, but i just wanted to know, how many of you have used it, and how many of you feel that it has actually helped out your car? Also, how easy was it for all of you to use it.

 

I have used it. As far as performance goes, I think that it is mental more than anything. I did feel a little better throttle response afterwards. But knowing that I cleaned some crap out of my car makes me feel better. I haven't experienced any ill effects from using Seafoam yet. I would recommend using it.

 

I tried it cause I sell it. I don't think it did a damn thing for performance. Although removing carbon build up can help reduce the chance of detonation or preignition problems. I have always asked the question though of "if we are cleaning out carbon deposits, what happens when it gets to the catalytic converter(s)???????"

No one has answered that question yet

The other question I had was what does it do to O2's since sea foam doesn't combust and O2's are sensitive to chemicals?

Decide for yourself

 

it can ruin your O2s and by the same method could clog the cat(s) a bit. Some say to pull the O2s out while you do it or you can give Jason Cromer a call and have a new set ready to go in for about $30-$35 each. I usually replace the O2s once a year so I try to do the seafoam then.

 

I used Seafoam and it caused both my O2's to crap out on me. If I did use it again, I'd definately pull my O2's so as to avoid another $80 mistake. I can't really say if it helped out with my performance or not--I didn't notice any difference.

 

It seemed to help. I used it several months back when I first purchased my car, and then again before a Track Day a few weeks ago. I also used some Berryman Chemtool to clean up the throttle body, and intake as well. At the track day, for the first couple of sessions I was really blowing out soot. By the 4th session, it was blowing clean. I think it did the job, and the Track Day gave me a way to run some high RPMs to clean it all out. A smoother idle and smooth low RPM take offs is what I noticed most. Granted, my car had 65K on it, and while it seems to have been taken car of pretty well, probably had never had the intake cleaned. It was really dirty IMO, but this is the first LT1 I've had.

 

On the can it states that its safe for the o2s. I used it it cleared a stumble for two weeks then it came back, I think I have another problem to deal with, this is on my Blazer.

 

only use GM additives, another recomdation for the chevron stuff, those are the only two brands known to have some active ingredient that actually cleans. as for performance i doubt youd feel any. question is do you need cleaners and such if you always use 92/94 octane gas?

 

TTT

 

why does it not combust? it smells like petroleum or kerosene

 

I just used it because I'm getting ready to do a head/cam swap.
Everything seemed to go smooth, did appear to even my idle our some. Can't say it gives you a noticable SOP feel. Here's a link that will guide you through the process Seafoam . BTW I used the middle hose on the passanger side of the throttle body.

 

Let me put it this way. Ever since I bought my car with 155,000 miles. I have used seafoam (usually when changing oil). When I pulled my heads at 165,000miles THEY LOOKED BRAND NEW! Take that for what its worth. But seafoam works. The Piston tops were clean and underside of the heads and valves looked great!

Now on a side note. I do believe that it causes problems with O2's and more than likely catalytic converters. But I have a gutted CAT and I regularly seafoam so the sensors are fine.

Use it at your discretion....

 

It didn't hurt my cat (mines gutted ) but it did kill my O2 sensors!! Next time i'll take them out.

 

quote:
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Originally posted by slopokrodrigez
The other question I had was what does it do to O2's since sea foam doesn't combust and O2's are sensitive to chemicals?

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It is petroleum based, therefore it will combust. Just smell it, it smells alot like gas. As for my sensors, It didn't seem to hurt them, but I will take them out next time.

 

Used Sea foam little over a year ago as maintenance, 120,000 miles and figured upper engine combustion chamber could use carbon cleaning. Fed it through vacuum line slowly, shut engine off and let it sit for few minutes, started car... exhaust quiet, engine had no power, SES light on. It ruined both my O2 sensors and clogged cat. Was not happy, trying to do the right and maintain car and cost me $200. Kinda sucks, worked at a Jeep-Mitsubishi for 12 years, used it all the time in customers cars and never had a problem. I have seen it fix an upper engine knock where a piece of carbon was sandwiched between a valve and valve seat causing the piston to hit the valve and make knock noise.