Seafoam

Parley with regards to your 1987 to 1991 Bonneville, Olds 88, Olds 98 86-90 or Buick Le Sabre, Le Sabre T-Type and Park Avenue 85-90 . Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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PocolocoBob
SLE Member
SLE Member
Posts: 36
Joined: Tue Jan 29, 2013 12:12 am
Year and Trim: 1990 3800 SSE
Black ext, gray leather int, sunroof
Location: Suffolk county, New York

Seafoam

Post by PocolocoBob »

I have a slight miss in my motor. I've heard seafoam is better than deep fried gold.
Questions:
- Is this true?
- how does it work?
- Can I use it with synthetic oil?
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RJolly87
Certified Bonneville Nut
Certified Bonneville Nut
Posts: 5403
Joined: Tue May 27, 2008 8:53 am
Year and Trim: 1993 Buick Park Avenue
1994 Buick Regal Custom
Location: Las Cruces, NM

Re: Seafoam

Post by RJolly87 »

It is better than deep fried gold.

It is basically an all purpose cleaner. Cleans carbon deposits, and sludge. You can use it with any oil, but it is recommended to change the oil soon after putting it in, as it breaks loose all the junk in the crankcase.

Same with carbon buildup in the cylinders if consumed directly in the intake, or junk in the fuel system if dumped in the fuel tank.
~Randall~
ImageImage

1993 Buick Park Avenue - 197k - Some odds and ends done - Simply won't die
1994 Buick Regal - 78k - Bone stock - Always ready for a good kicking
1990 Oldsmobile 88 - Gone to a better place
oddie121
SLE Member
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Posts: 50
Joined: Fri Apr 20, 2012 9:27 am
Year and Trim: 1991 Red/Maroon Bonneville LE
Location: Wisconsin

Re: Seafoam

Post by oddie121 »

I've used it on my 91 and it cleaned a bunch out from my grandparents... almost made the oil blacker than black. After putting in new plugs it runs as smooth as can be. I put half in the oil and half in the gas. I may do it again soon before my oil change.
I added the trans tune to the transmission and it helped smooth it out a bit but i have a feeling mine may need to be rebuilt.

Its meant for regular oil and synthetic.

Good luck with yours!
1991 Red/Maroon Bonneville LE - Was pristine, rebuilding due to deer :(
1991 Black Bonneville SE - Parting out
Maybe someday an SSEi
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Arrowhead
Posts like an LG3
Posts like an LG3
Posts: 342
Joined: Tue Jul 24, 2012 4:32 am
Year and Trim: 2000 SLE
2005 GXP
Location: Frederick, Maryland

Re: Seafoam

Post by Arrowhead »

PocolocoBob wrote:I have a slight miss in my motor. I've heard seafoam is better than deep fried gold.
Questions:
- Is this true?
- how does it work?
- Can I use it with synthetic oil?

I've never tried it but, I've seen a bunch of stuff on youtube about it. Link below:


http://www.youtube.com/results?search_q ... enuYlfad18
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