see my posts on seafoam, don't use it, can cause hydro-loc.
much better products and at lower cost out there, regain, techno, amsoil, redline.
What in Seafoam causes hydro-loc?? How about posting a link to your posts instead of telling him or anyone to "search" for it. Back up your claim...... please.
2 seconds to do a quick search "ca exhaustcoatings seafoam"

Re: Mothball
« Reply #4 on: November 24, 2009, 09:50:34 AM » Quote Modify Remove
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I will not use seafoam for that purpose, only sta-bil.
Last line from another site indicates seafoam could be cause of HYDRO-LOCK. :'(
They say its 100% petroleum.
http://www.seafoamsales.com/gas-engines/gasoline-engines/e-85-fuels/view.htmlThe MSDS says otherwise
http://www.seafoamsales.com/consumer-information/trans-tune/msds-trans-tune/view-2.htmlIPA 67-63-0 is Isopropyl alcohol Ethanol gas is alcohol
http://www.chemblink.com/products/67-63-0.htmvery expensive for this purpose, seafoam is only 10-20%. Iso-heat, sta-bil are much more cost effective IMO.
http://www.wisegeek.com/what-is-isopropyl-alcohol.htmIsopropyl alcohol is also a component of additives intended to prevent or treat water accumulation in fuel lines, such as “dry gas.” In fact, it helps to reduce the risk of water freezing in fuel lines. It does this by making the water soluble, which would otherwise separate from the gasoline and turn to ice during cold weather.
Seafoam Ingredients
CAS # Wt.%
Pale Oil 64742-54-7 40.00 - 60.00% N/Av >15000 mg/kg >5000 mg/kg
Naphtha 64742-49-0 25.00 - 35.00% N/Av >5000 mg/kg N/Av
IPA 67-63-0 10.00 - 20.00% 17000ppm 4720mg/kg 12890mg/kg
http://www.thehulltruth.com/boating-forum/203184-seafoam-contains-10-20-isopropyl-alcohol-ipa.htmlSeafoam will absorb small amounts of water. What it will not fix is E10 that has phase separated.
PALE OILS are light coloured, non-staining naphthenic oils refined from specially selected wax-free crude through the use of severe hydrogenation. This process produces oils of excellent initial colour and colour stability while maintaining their compatibility with most synthetic elastomers. With a flash point of 330 degreee F or more. E10 flash point is around -40 degrees F. Diesel is around 143 degrees F by the way. Have you ever wondered why Seafoam will stall your gasoilne engine unless you rev the piss out of it.
Well now you know; the stuff does not want to go BOOM.

Naphtha flash point is a little lower then gasoline. If want to buy Naphtha go buy some Coleman Stove Fuel.
Seafoam has a flash point of 55 degrees F and gasoline is -40 degrees F. That is why when you pour it in a carb the engine wants to die.
Bottom line is the stuff seems to work in the old 2 cycle outboards I have tried. Now filling the racor with straight seafoam seems like you are asking for trouble. The stuff does not want to burn like gasoline and by filling the racor that is exactly you are trying to do.
Anybody hydrolocked a motor trying this? :'(
acetone fixes phase seperation.