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View Poll Results: Based on your experience how would you rate SeaFoam
Great
15
31.91%
Good
16
34.04%
minimal results
10
21.28%
snake oil
6
12.77%
Voters: 47. You may not vote on this poll
lets take a poll
Instructor
Joined: Jan 2008
Posts: 163
Likes: 1
From: Idianapolis Indiana
If you are gonna use it in a transmission or engine crankcase make sure you have someone who knows what theyre doin show you how it works. As far as using it for fuel stabalizer or injector cleaner its impossible to screw up.
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
It seems to do a pretty decent job as far as a fuel stabilizer goes. 1 year when I didn't, my new lawn tractor had to have the carbs rebuilt. So far, not yet since I put a can of Seafoam in it before I store it. As to using it as an injector cleaner, I have yet to see any test results that show it works.
Race Director
Joined: Jun 2001
Posts: 10,956
Likes: 681
From: Marlboro country MA
It did an AWESOME job.... of making smoke. I cleaned out the intake of my 92 LT1 after 155,000 miles. I must say that I didn't notice much difference, but then again, the car had been running smoothly before I treated it, and it ran smoothly after, too. 
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Thread Starter
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
For corvette-pilot, well, I honestly do think you get a seat of the pants experience if your injectors are clean afterwards, idle has improved and carbon buildup has been removed.
When I said visual this is what happened. I had a 21 ft boat powered by a single V6, constantly trolling for fish. After awhile the engine would cough, spit an embarrassing amount of carbon on the water, transom would actually start turning a carbon color. Well, introduction to SeaFoam, cleaned the transom, and wallah, never happened again using a seasonal treatment. Plus the engine ran alot smoother.
When I said visual this is what happened. I had a 21 ft boat powered by a single V6, constantly trolling for fish. After awhile the engine would cough, spit an embarrassing amount of carbon on the water, transom would actually start turning a carbon color. Well, introduction to SeaFoam, cleaned the transom, and wallah, never happened again using a seasonal treatment. Plus the engine ran alot smoother.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 413
From: WV
I was in doubt years ago also until I saw results of a side by side teardown of a commercial ocean fishing fleet of boats that were running twin 200hp engines . Before teardown one of the motors of the two had Seafoam run through it. When the motors were pulled apart the one with the seafoam treatment was amazingly cleaner throughout the engine and the pistons on the seafoamed motor looked almost new, while the other motor had a large amount of carbon buildup covering the pistons. Bought of these motors were run side by side on the boat with the same amount of hours on them and the one with seafoam looked way better, and they did the treatment on 4 boats not just one.. Seeing this definitely made a believer out of me..WW
Pro
Joined: Mar 2008
Posts: 702
Likes: 0
results of the poll seem pretty good. I think I am gonna give it try. I plan on buying new injectors whenever get around to building my new motor (383) so investing six bucks in the old system just seems like a no brainer versus overhauling a system that is getting changing out
..
Burning Brakes
Joined: Jun 2001
Posts: 924
Likes: 0
From: Columbia South Carolina
Race Director
Joined: Feb 2003
Posts: 11,672
Likes: 20
From: Lake Wylie SC
I work at a local AutoZone and Seafoam flies off the shelf. As far as a performance increaser......you won't see much , if any, power increase. BUT, as a "preventive maintenance" additive it does keep things clean. However, some car manufacturers say NOT to use gasoline additives. BTW, our Lucus fuel additive also is a favorite. During the southeast shortage of gas, many of our customers were getting "bad" gas and the fuel injector cleaners seemed to help out. We also couldn't keep octane boosters on the shelves as only regular was available at times.