Seafoam question - Ford Powerstroke Diesel Forum
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post #1 of 13 Old 12-06-2019, 05:16 PM Thread Starter
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Seafoam question

I see lots of threads on here that seafoaming diesels are a big no no..

If Seafoam creates issues with diesels, how can the manufacturer make such bold claims?

WW.youtube.com/watch?v=544E_X2oUgM
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post #2 of 13 Old 12-06-2019, 06:40 PM
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i have used seafoam for the past 20 plus years, on my motorcycles, boat, lawn equipment, cars, trucks, never had an issue, I have used it in the fuel and crankcase (last 500 miles before oil change).

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post #3 of 13 Old 12-06-2019, 07:01 PM Thread Starter
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Quote:
Originally Posted by Rui Almeida View Post
i have used seafoam for the past 20 plus years, on my motorcycles, boat, lawn equipment, cars, trucks, never had an issue, I have used it in the fuel and crankcase (last 500 miles before oil change).
What year diesel you use it on? I wonder if older engines are OK with it?
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post #4 of 13 Old 12-06-2019, 07:16 PM
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Depends on how its used, are you talking about putting it in the fuel or oil, or dumping it into the intake?

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post #5 of 13 Old 12-06-2019, 07:22 PM Thread Starter
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Originally Posted by 00t444e View Post
Depends on how its used, are you talking about putting it in the fuel or oil, or dumping it into the intake?
I’ve always dumped it in the fuel tank on my gas vehicles. Always followed the bottle directions. I have not done any work on putting fluids directly into the intake.
But if you watch that video that guy who represents seafoam said the more you pour in your gas tank the better it performs LOL.
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post #6 of 13 Old 12-07-2019, 03:39 AM
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Here's a key indicator if you should use it in your PSD. Find all the threads that people have used it with no issues. Find all the threads where people say don't use it. Make your decisions wisely.



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post #7 of 13 Old 12-07-2019, 03:42 AM Thread Starter
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LOL good point.



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Here's a key indicator if you should use it in your PSD. Find all the threads that people have used it with no issues. Find all the threads where people say don't use it. Make your decisions wisely.
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post #8 of 13 Old 12-07-2019, 03:46 AM
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I'll keep saying things like this: When you see everyone using (insert product), there's tons of good threads about using (insert product), it's probably a safe bet.



For a 17-current truck I can't see where Seafoam is going to be the holy grail for anything.



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post #9 of 13 Old 12-07-2019, 06:49 PM
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I’ve dumped a little to much fuel additive in my 6.0 and it let me know it did not approve. Run noticeably tougher til it passed there. Have used caution on amounts since. Haven’t added anything in the 17 yet..


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post #10 of 13 Old 12-07-2019, 07:41 PM
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I never used to be a fan and thought it was a miracle fluid excelsior but I used seafoam for two gas motor projects and it did better than expected ( clean up bad gas in a lawnmower and soak a stuck valve in the actual valve guide using some rubber tube and filling with seafoam )

not sure why "everyone else is saying do not use seafoam in deisel fuel ? ( seafoam seems to contest that warning)

however, with 6% alcohol and alcohol being hygroscopic I think I would avoid its use in any system that has proven to be susceptible to failure due to water in fuel

6.0 flush pdf
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