Seafoam - the good, bad and ugly. - Chevy and GMC Duramax Diesel Forum
Alternative Fuels - Diesel - Additives - Lubricants Discussion of diesel, its various additives, oils, lubricants and alternative fuels IE: Bio-Diesel ect...

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Old 07-08-2012, 01:12 AM   eBay Motors  #1 (permalink)
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Seafoam - the good, bad and ugly.

i have been reading online about Seafoam as a fuel stabilizer. It looks like it may be a decent alternative to Stabil, without so many of the side effects.

How does it perform with regard to lubrication, fuel stabilization, algae prevention, etc?

Any thoughts and opinions are welcome.
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Old 07-08-2012, 01:49 AM   eBay Motors  #2 (permalink)
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It's mostly made of diesel from what I understand.

Don't introduce to intake system direct, only through fuel.
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Old 07-08-2012, 03:01 AM   eBay Motors  #3 (permalink)
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Generally diesel does not need to be "stabilized" be stored for less than a year, you may need to add an alga side to keep biological growth down, in some applications, but diesel does not phase separate like gasoline does. If you want to put an additives package try Diesel Power Service, it is inexpensive and effective and available at Walmart...
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Old 07-08-2012, 03:17 PM   eBay Motors  #4 (permalink)
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When using Seafoam as a stabilizer it will do exactly that, keep things stabilized. When using Stabil- it only forms a light film on the top of the fuel that can break very easily if the fuel is disturbed (moved/sloshed around) and thus the stability is no longer there. not so when using Seafoam. I've also used Seafoam for Diesels in my truck- no problems with it whatsoever, and it does help with lubricity a bit.
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Old 07-10-2012, 04:53 PM   eBay Motors  #5 (permalink)
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How about with the gassers? I was thinking of using some in my toys to keep the fuel fresh and injectors clean.

Stabil makes em run like crap if there's a touch too much in the fuel - almost as bad as bad gas.
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Old 07-10-2012, 05:06 PM   eBay Motors  #6 (permalink)
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I use it often in my 94 cadillac, seems to keep things running smoother.

When I first got an 85 dodge d50 with a mitsi diesel engine, it had been sitting for a few years. dumped out the fuel filter and filled with seafoam. Smoke was black as can be at first, but sure smoothed out the idle and ran stronger.

Seafoam is about the only thing I trust as far as the 'tune up in a can' things go. Just basically had good experience with it.
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Old 07-10-2012, 06:13 PM   eBay Motors  #7 (permalink)
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How about with the gassers? I was thinking of using some in my toys to keep the fuel fresh and injectors clean.

Stabil makes em run like crap if there's a touch too much in the fuel - almost as bad as bad gas.
My cousin ran it in his Ford v8 and after it was cleaned out it ran great.
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Old 07-10-2012, 06:13 PM   eBay Motors  #8 (permalink)
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Note to remember-- Some have learned this the hard way---$$$$

Do NOT inject Seafoam, or anything else in the intake of any diesel. The diesel engine has no throttle, so the engine will "Run Away", and will continue to increase engine speed until the engine blows, or it runs out of the product you have put in the intake. Turning off the key does nothing, as there is no spark used.

Adding it to the fuel filter or fuel tank, is OK
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Old 07-10-2012, 06:19 PM   eBay Motors  #9 (permalink)
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I've used it in all my gas toys for years. Works great. Even cleaned a gummed up boat fuel tank, and clans the carbs in some cases.
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Old 07-10-2012, 06:22 PM   eBay Motors  #10 (permalink)
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I ran seafoam in my truck and in my wife nissan murano. And ran good in the murano but it didn't seem to last to long in my truck. Just get a diesel additive it ll save you in the long run.
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