Jeff Burke wrote:
On 11 Aug 2006 12:46:06 -0700, "basskisser" wrote:
wrote:
I know several mechanics, that swear by "Sea Foam" . Some say it's the
best they've ever used.
YMMV

It may be good for carbs, but their website sure makes a lot of claims,
one being that it'll clean carbon deposits. There has been alot of
tests done on care engines with stuff claiming to clean carbon from
tops of pistons, only to find that the only true way to do so is
manually.

An engineer in a motorcycle group did a test, scoped his motor with a fiber
optics scope thru the spark plug hole. Ran Seafoam for the next 3 tank fulls
and scoped it again. He had a bad carbon problem in the first look and it was
all but gone in the second, with no other changes. He was a skeptic at the
beginning and did the visual check to prove the others in the group that their
claims were BS, he admitted that Seafoam did exactly as it claimed.

Again, there's been many many documented tests where they've used
various products much like, if not Seafoam, to clean carbon deposits.
Now I'm not saying that if the top of a piston has very minor carbon,
that seafoam won't make it look clean, but if you've got carbon enough
so that your compression has gone up, and results in pinging without
higher octane fuel, then it ain't going to do much for you.