Is seafoam any good?

gigidy5 · Post by **gigidy5** » 03 Nov 2008, 23:42

Is seafoam any good?

I've heard a lot about how good seafoam is for old engines...

Is it any good?

I have a bottle and I'm afraid to put it in.

thanks

Post by **matthew1** » 04 Nov 2008, 00:02

Seafoam instructions https://www.matthewsvolvosite.com/chat/p ... 6451#66451

Seafoam doesn't work https://www.matthewsvolvosite.com/chat/p ... hp?t=13217

Seafoam does work https://www.matthewsvolvosite.com/chat/p ... hp?t=13100

Post by **Ozark Lee** » 06 Nov 2008, 15:04

My daughter was horribly disappointed in the smoke cloud out of her Porsche after sucking it through her brake booster vac line. She wanted something like the 4th of July.

It sure starts and runs much smoother after adding it to the oil.

...Lee

StarmanDXE · Post by **StarmanDXE** » 12 Dec 2008, 18:32

I can tell you this much:

The compression in the cylinders of my 850 went from (180 - 150 - 160 - 150 - 100) prior to Seafoam to (190 - 185 - 180 - 185 - 175) post Seafoam.

I'm convinced!

gigidy5 · Post by **gigidy5** » 19 Dec 2008, 23:02

I'm still afraid to do it because I've heard it can really screw the engine up if you do it wrong.

Post by **MadeInJapan** » 20 Dec 2008, 06:18

Make sure the engine is warm to begin with- don't suck the seafoam into an cold engine. Good luck. I've heard very few problems using it. Those that screwed things up did it wrong.

Post by **JRL** » 20 Dec 2008, 07:08

FOLLOW THE INSTRUCTIONS

StarmanDXE · Post by **StarmanDXE** » 20 Dec 2008, 07:44

I actually did my car twice. The first time I did it, I sucked about 1/4 of the can in and then burned it off right away (drove around in low-gear). Then someone mentioned that you should suck it in, let it sit for an hour (or so) and soak-in, and then burn it off. (Not sure if that's what the instructions detailed to do.) So, I did another 1/4 of the can (I think the next night) and let it sit for almost 2 hours (IIRC). Went out and burned it off. Then had way more power than I was expecting and found out that my compression issues had be almost completely fixed!

So, I say do it. I think I'm going to do this to my new S60 (it's got ~110k miles) just because of how well it worked out on the 850. Now I just need to find out which vacuum hose to use...

Howling · Post by **Howling** » 26 Dec 2009, 20:58

USE IT! Seafoam is some of the best stuff you can use in your car and fyi boats and bikes too!

Post by **JDS60R** » 26 Dec 2009, 21:17

Seafoam works great
Its must be introduced to the intake properly and slowly.
We aerate it as it comes down from our container through a 1/8 in vynil line. To aerate it we introduce a vacuum "Y" half way between the container and the vacuum line we feed it into.

Most folks dip the line into the can or a cup and introduce too much into the intake and hydrolock the cylinder or create so high a pressure in the cylinder that the rod bearing,ring land or ring fails.

A slow drip that jst begins to change the idle is perfect.
Then shut it down and let it soak for 15 minutes.

My partner puts a few cc's into each cylnder ( he sprays it under pressure) in eah cylinder each time we change or inspect a plug.

Use it carefully and it is a great carbon removing resource