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This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

View Poll Results: Have you ever used Seafoam?
Yes, I highly recommend it. 51 38.35%
Yes, But I dont recommend it. 7 5.26%
No, But I have thought about it. 51 38.35%
No, I would never do it. 9 6.77%
No, I have mixed feelings about it. 16 12.03%
Multiple Choice Poll. Voters: 133. You may not vote on this poll

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Old 08-08-2012, 10:18 AM   #941
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My point exactly. I'm saying I feel it'll work, it worked on my dads truck when ran it in the gas only.
Same concept as Techron.. or any time you put gas really. Just concentrated. Go for it. Nothing dangerous about it. Common sense goes a long way.
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Old 08-08-2012, 10:19 AM   #942
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Well, the only dangerous thing would be to hydro lock the engine. lol

But I did find the video on their site and how he used his finger to allow only a few drips to go at a time, I'll go with that method and a funnel.
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Old 08-08-2012, 10:32 AM   #943
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So, if I understand correctly, the rate that you pour the Seafoam in to the vacuum line determines if you hydrolock your motor?
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Old 08-08-2012, 10:38 AM   #944
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So, if I understand correctly, the rate that you pour the Seafoam in to the vacuum line determines if you hydrolock your motor?
Yes... drip it in there, don't dunk the vacuum line in the bottle.
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Old 08-08-2012, 10:40 AM   #945
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So, if I understand correctly, the rate that you pour the Seafoam in to the vacuum line determines if you hydrolock your motor?
Yes, if you pour it in too fast, it'll just puddle up and the engine won't fire, and you'll need to rebuild your engine.

I've seen some people pull the spark plugs out and turn it over to get the stuff out, but.. it's never a guarantee.
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Old 08-08-2012, 10:42 AM   #946
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Yes... drip it in there, don't dunk the vacuum line in the bottle.
alright I just wasn't sure what was the main factor. Thanks for the help.
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Old 08-08-2012, 10:46 AM   #947
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I have used Seaform in all 5 of my BMWs. However, I did not pour it into my oil. I only used a full can in a full gas tank and 1/3 can through the brake booster (in all). I let it set for 5 minutes and watched the smoke. I made the mistake of letting it stand after the brake booster install for 10 minutes in my 94 318i. It smoked for 20 minutes (NO kidding). Made the mistake of doing it in a residential neighborhood too. Very embarrassing...but car has worked. Now at 200k miles
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Old 08-11-2012, 04:36 AM   #948
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I have used Seaform in all 5 of my BMWs. However, I did not pour it into my oil. I only used a full can in a full gas tank and 1/3 can through the brake booster (in all). I let it set for 5 minutes and watched the smoke. I made the mistake of letting it stand after the brake booster install for 10 minutes in my 94 318i. It smoked for 20 minutes (NO kidding). Made the mistake of doing it in a residential neighborhood too. Very embarrassing...but car has worked. Now at 200k miles
Hehe, ya I did the same thing. But I poured 1can in my gas tank, then used one can via vacum line(btw took me 45 min to induce to the eng.), then I kid u not I could not see 10 feet behind my car. Then to my luck the fire dpartment shows up, and the first words out the capt was "Rellly, dam explorer shouda knwn". but the show was great, it lasted atlest 30 mins

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Old 08-11-2012, 07:15 AM   #949
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Hehe, ya I did the same thing. But I poured 1can in my gas tank, then used one can via vacum line(btw took me 45 min to induce to the eng.), then I kid u not I could not see 10 feet behind my car. Then to my luck the fire dpartment shows up, and the first words out the capt was "Rellly, dam explorer shouda knwn". but the show was great, it lasted atlest 30 mins

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Yeah next time I'm gonna do a while can in the vacuum line, and a whole can in the gas tank.


But yeah, I didn't even "pour" it into the engine, I mearly tilted the can, and let the vacuum suction suck it out of the can. Took me about 20 minutes or so for 1/2 can.
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Old 09-21-2012, 04:17 AM   #950
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Seafoam is fine......good stuff. I have used it so many times.
owned my car since 05. I know how it feels when the car was new.

we should host a seafoam party at a parking lot.

Last edited by J LAU; 09-21-2012 at 04:20 AM.
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Old 09-21-2012, 05:19 AM   #951
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Combined every seafoam thread into one.
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Old 09-21-2012, 06:00 AM   #952
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Make sure you change your oil afterwards. No way that a product that breaks down sludge and cleans out deposits is going to be good for your oil. There is also no way it won't contaminate your oil.
I am not sure what the instructions for Techron are now, but way back in the 90's they used to reccomend an oil change after running a bottle of it through a tank of gas. That may have changed now though.
So, make sure you do this just before an oil change.
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Old 09-21-2012, 09:03 AM   #953
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I use it through the intake in all my cars and trucks. Have done it for years. Unless you put it into your crankcase, there is no need to do an immediate oil change. It does clean the screen on the converter and if you do manage to set off a CEL, just drive it a few miles and then reset the light with your scan tool. You do have a scan tool don't you? Buy one instead of the clear corners and sides.
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Old 09-21-2012, 11:26 AM   #954
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I use it through the intake in all my cars and trucks. Have done it for years. Unless you put it into your crankcase, there is no need to do an immediate oil change. It does clean the screen on the converter and if you do manage to set off a CEL, just drive it a few miles and then reset the light with your scan tool. You do have a scan tool don't you? Buy one instead of the clear corners and sides.
Not sure who the comment is directed to, but, yes, I do have a code reader. Thanks for making unnecessary assumptions though about me, and my 99% un-modified car. Even if it is directed at the OP, it is a big assumption to make.
As for not needing to change the oil, this stuff is a solvent. You are passing it through your engine. There is bound to be blowby of this stuff in the pistons. Adding a solvent to your engine oil is not a good idea.
So, I stand behind my assertion that an engine cleanings with this stuff should be followed by an oil change. If you have done it for years, you have been driving with a solvent in your oil. And I have no problem believing that is completely possible. It is just not something I would do.
I also will only add Techron to my car in the last tank before an oil change, and wait until it has burned out. As I said, that used to be the reccomendation they printed on the bottle. They may have changed it now. So, while you are free to say that an oil change is not necessary, I am also free to say it is probably a good idea to do so. Is that overly cautious? Possibly. But there is zero chance of harm in waiting to do this before an oil change, while not doing so is still questionable. So why not go with the best odds? No one is ever in need of an emergency application of Seafoam, so there is no harm in timing it correctly. To put it another way, my suggestion is 100% safe, while we really don't know if yours, or anyone else's detrimental or not. You only have your subjective experience to back up your assertions.
Let people decide what they want to do, instead of trying to force your view as the only valid one. A sample of one (or even 3 or 4) is meaningless.
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Old 09-21-2012, 12:22 PM   #955
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If you have that much blow-by you need a rebuild, not a cleaning. The cleaner is in and out very quickly, and the detergent involved will not harm your engine. If you are pouring it in the crankcase that is another matter entirely. Drove my previous Volvo for 27 years without any significant issues. Doubt if you will keep your BMW anywhere close to that. Loud as you yelled, I must have hit a raw nerve. Man up.
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Old 09-21-2012, 01:15 PM   #956
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If you have that much blow-by you need a rebuild, not a cleaning. The cleaner is in and out very quickly, and the detergent involved will not harm your engine. If you are pouring it in the crankcase that is another matter entirely. Drove my previous Volvo for 27 years without any significant issues. Doubt if you will keep your BMW anywhere close to that. Loud as you yelled, I must have hit a raw nerve. Man up.
People usually use ALL CAPS to yell, so no, I did not yell.
But, I was thorough, because I had a feeling you were extremely obstinate. And judging by your follow-up, I can see that was more than necessary.
Your Volvo example is almost meaningless, since a 27 year old Volvo did not have anywhere near the close tolerances that a modern BMW has, not to mention the fact that it was probably an iron block and heads. So, you may as well have said you did the same thing in your Packard. Interesting story. Maybe next time you can contribute something relevant, rather than a folk story.
As far as reactions, the fact you replied to logic with "I must have hit a nerve" and "Man up" pretty much shows how capable you are of following logic, and how much you seem to love the negative attention of trolling.
I am sorry daddy was hard on you, and mommy did not pay attention to you, and perhaps you were not breast fed or something, but I have to leave for the rest of the day, so maybe you can go yell at the mailman for being 15 minutes late, or tell those damn kids to stay off your lawn to fill your need for attention, even if it is the negative variety, for the rest of the afternoon.
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Old 09-22-2012, 02:34 AM   #957
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forum is full of grown ass kids.
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Old 12-12-2012, 03:51 PM   #958
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Is seafoam right for me, or is it to late?

A few peeps have recommended pushing some seafoam thru
I just changed my VCG and now you can really see how bad it is in there.
My Grandpa thinks its its a horrible idea because how caked it is, he doesnt want that crud coming loose and clogging things up, making it worse etc.

What are your thoughts on using some seafoam with my internals so bad?
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Old 12-12-2012, 04:03 PM   #959
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A few peeps have recommended pushing some seafoam thru
I just changed my VCG and now you can really see how bad it is in there.
My Grandpa thinks its its a horrible idea because how caked it is, he doesnt want that crud coming loose and clogging things up, making it worse etc.

What are your thoughts on using some seafoam with my internals so bad?
Good call on your grandpa. If all that stuff comes off at once, your oil pickup strainer is going to just get clogged with it. Just use a BMW approved and change it more frequently and everything will get cleaned from use.
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Old 12-12-2012, 05:15 PM   #960
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good to know, thank you sir
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