Seafoam in crankk case and gas tank...

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Old 03-06-2008, 06:33 PM
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Seafoam in crankk case and gas tank...

Should I use 1 can in the crank case before an oil change and 1 can in the fuel tank with a 1/4 tank left? And when i do this should i do it together and go on an 10-15mile thrill run?(multiple 10-60mph going through vtec range).
Old 03-06-2008, 07:32 PM
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You dont need to do a hard drive with either method you are talking about. You only need to do the hard drive after you do it through the vac line. Read the seafoam thread.
Old 03-06-2008, 07:36 PM
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lets be more clear- the vac PORT NIPPLE at the throttle body- for getting seafoam in the intake manifold
not the old way thru the rubber line on the fender

In the oil- idle or gentle drive 15 minutes
In the gas tank- drive it normal or fun run if you want
Dont hi rev with it in the oil- just to be safe- I have no facts
Old 03-06-2008, 07:39 PM
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hey 1st:
remember that part of the new transmission break in period we talked about- no wide open throttle vtec runs yet- be nice !!!~
Old 03-06-2008, 08:14 PM
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i bought two cans, 1 in the gas tank, half in crankcase and half thru vac line. change oil in a couple weeks...putting it in today and changing oil tommorrow makes no difference
Old 03-06-2008, 09:16 PM
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argghh NO
The oil must be changed right away after seafoam- it loosens years of crud and fills the filter to its limit. 30 minutes max running with it then drain.
Do not let seafoam sit in this useage- it needs to be drained out or driven out
Old 03-06-2008, 09:41 PM
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Originally Posted by 01tl4tl
hey 1st:
remember that part of the new transmission break in period we talked about- no wide open throttle vtec runs yet- be nice !!!~
Yeah that's why i'll wait like 500 miles before i seafoam.That may take a while cause i only do about 120miles a week. 10-15 miles with seafoam in crank case is fine?
Old 03-06-2008, 09:51 PM
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Originally Posted by 01tl4tl
argghh NO
The oil must be changed right away after seafoam- it loosens years of crud and fills the filter to its limit. 30 minutes max running with it then drain.
Do not let seafoam sit in this useage- it needs to be drained out or driven out
i remember people said to let it be in there for atleast 500, i didnt do it that long, i went only around 100 miles, 3 days or so
Old 03-06-2008, 09:58 PM
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to make sure it all comes out of the crank case,while i drain the oil, I will add a quart of oil and let it drain before i put the filter on.
Old 03-07-2008, 02:04 AM
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dont make up your own new directions. read seafoams website for full details, but THEY say 30 minutes driving, like TO the oil change place.
Most of us just let it idle for 5 minutes the drain. It comes out with the oil change, dont waste money with extra qt. or litre
Old 03-07-2008, 05:51 AM
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Originally Posted by 01tl4tl
dont make up your own new directions. read seafoams website for full details, but THEY say 30 minutes driving, like TO the oil change place.
Most of us just let it idle for 5 minutes the drain. It comes out with the oil change, dont waste money with extra qt. or litre
I always did my oil changes this way.
Old 03-07-2008, 06:57 AM
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Originally Posted by 1st timer
Yeah that's why i'll wait like 500 miles before i seafoam.That may take a while cause i only do about 120miles a week. 10-15 miles with seafoam in crank case is fine?
There is NO need to wait 500 miles to add it to your fuel or your crank case (the later if you plan on having the oil changed that day)
Old 03-07-2008, 06:59 AM
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Originally Posted by 1st timer
to make sure it all comes out of the crank case,while i drain the oil, I will add a quart of oil and let it drain before i put the filter on.
WHY? pouring the oil in and waiting to put the filter on is pointless. You can fill your motor up with the full 5 quarts without the filter on. also pouring a full quart of oil in to ?? what help get things out?? isnt needed. Its just wasting oil and money
Old 03-07-2008, 11:43 AM
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kris- I think first timer is concerned about:- member has new trans, been told that seafoam in manifold = hard throttle post seafoam, and hard runs not allowed yet on new trans- hence the 500 miles.
And the 'ol : new to seafoaming fears,will it kill my engine or make me grow hair in unusual places... and some odd belief that pouring a qt of clean oil thru the system will remove seafoam residue clinging to the sides of the engine. yu remember the old days right~

Once you lose your virginity on this task- you will laugh at all the concerns and start doing the neighbors car for them too.
Wear latex gloves so you dont get an STD doing this~
red means sarcastic correct?
Old 03-07-2008, 07:11 PM
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It's just someting I always did to make sure all the gunk came out before I put the filter on and fill with new oil.Now,just want to make sure all the seafoam comes out.
Old 03-07-2008, 07:12 PM
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Originally Posted by 01tl4tl
hey 1st:
remember that part of the new transmission break in period we talked about- no wide open throttle vtec runs yet- be nice !!!~
It's hard,but i'm doing good so far.
Old 03-07-2008, 07:19 PM
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Originally Posted by Seafoam Technical Services Department
Sea Foam Motor Treatment used in Crankcase oil

All Gasoline and Diesel, Rotary style engines

Sea Foam Motor Treatment may be used in an oil crankcase 2 separate ways, depending on your needs and expectations.

Sea Foam Motor Treatment is most commonly used as a pre service old oil residue cleaner and moisture drier, and is also used as an after service additive.

1. As a pre service cleaner for old oil residue, sticky rings or valve train noise,

pour 1 ½ ounces of Sea Foam Motor Treatment into the engine oil crankcase for EACH quart of oil capacity including filter. (Diesels use 1 pint to 4 gallons of oil, please) Drive a MINIMUM of 30 minutes/miles, MAXIMUM 100 miles, then do your oil change service (LOF). This begins the process of safely/slowly re liquefying the old oil residue so contaminants may flow and be filtered. This also makes your old oil dirtier, quickly, so a LOF service is necessary when the oil gets dirty. (LOF = Lube oil & Filter service).

2. As an after service additive into fresh oil, nearly fresh oil, or oil (used condition) that is NOT ready to be changed (by mileage), put the same amount of Sea Foam Motor Treatment into the crankcase as described above, then SELF SET a program to MONITOR your oil for color and clarity on a mileage, timed, or event basis (like every time you add fuel, etc.) to determine when an oil service is necessary. (LOF)

Sea Foam Motor Treatment will safely and slowly re liquefy old oil residue, This will make your oil need changing BEFORE your normal scheduled LOF service. Only your monitoring of the oil for color and clarity can tell when it is time to do LOF - oil change service, or 3,000 miles, whichever comes first.

Check your oil and monitor its color & clarity to determine need for LOF service!

Change your oil when it gets dirty!
Old 03-07-2008, 09:55 PM
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so 3/4 of a pint can into the engine oil then 30 minutes drive- ok I will try that next time.
My engine isnt gunk city inside so I dont thing more than that is needed, and I believe seafoam directions are written for the masses, not the A/R ziner

Hey - there have been recent changes to the DIY that have been incorrect for years on the seafoam- new more detailed reading by members (like above) does clarify things that are spread thru the Internet
Old 03-07-2008, 09:56 PM
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pre service cleaner for old oil residue, sticky rings or valve train noise,

So if we dont have horrible engines- what should we do- after I read the highlighted again?!
Old 03-07-2008, 10:03 PM
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Part two says you can also add it to fresh oil then just watch your oil and change it when it gets dirty.
Old 03-07-2008, 10:17 PM
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yes- it says IF you are not ready to change the oil yet,- it can be used if watched carefully for color changes that indicate the oil is holding all the contaminents it can- time for a change NOW
My concern on really dirty engine would be plugging of the oil filter, that causes the bypass valve to open and takes the filter out of the loop- recirulating gooey crud thru the engine.
That means my old truck would get a new filter before the cleaning and again with the oil change.
For most ziners this is not an issue- we have clean engines to start with.
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