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I know the instructions on the bottle of things like Techron say pour in when the tank is empty, THEN pour in gas. Not sure if seafoam is similar, or if it makes a difference.
 

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Ya I heard something like that.
To pour about all of it then fill up the tank to mix it up but I wasn't sure and I wanted to ask you guys.
The guy at oreilly told me it was some good stuff too.
Has anyone tried it?

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1) Never trust anyone at those auto parts stores. They will tell you anything if it means selling you something.

2) I know alot of people who really like Seafoam, I've been meaning to try it myself. If you're careful, there really is no downside to using it. Read the instructions on the bottle.
 

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Just living MY dream
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OP go to the user control panel and create a signature so you don't have to put a pic of your car in each post. :)
 

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I Am The Machine
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In this case they happen to be right, but Ethereal is right - the chain store guys don't know jack. But, yes, Seafoam is great stuff, just use it as the directions say.

Another way to do it is to use a gas can, pour in the right amount and add gas in the can and shake it up, then toss it in. That way it's premixed with at least some gas so it's not just one big thing of concentrate. You'll probably want to use the nozzle from a gas can to pour it in anyway otherwise you'll have a bitch of time getting it in the tank.
 

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I feed trolls
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I has no problem pouring it in without a nozzle? Seafoa is the cargods gift to the world, OP. The only way it will hurt is if you put too much in, IE 5 gallons in a half full tank. It may give you a little bit crappier mpg at first, because it will be cleaning all the gunk outta your injectors and such, but in the long run it will benefit you and your engine. You can also add it to oil, though you have to be careful when treading that territory
 

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I know the instructions on the bottle of things like Techron say pour in when the tank is empty, THEN pour in gas. Not sure if seafoam is similar, or if it makes a difference.
today i just did the things you said. when the gas tank light was on, i went to the gas station poured 16oz sea foam and then filled 10 gallon. do your think it will increase the mpg?:confused:
 

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Discussion Starter · #13 ·
Should of pured less....
Its always better puring a little just in case.
I poured half of it
 

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Just living MY dream
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16 oz is too much.

It will decrease your mileage at first, but then it should pick up again.
 

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D'oh, You Kids!
1984 633CSi, 1985 635CSi, 1985 325e, 1987 325is, 1993 325is, 1995 318is, 1995 M3, 2003 F150
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It's not going to damage it, but to minimize the effect of putting too much in it, fill the tank the rest of the way. That will dilute the Seafoam somewhat. You're fine. Quit worrying about it.
 

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If you are really concerned, fill your tank, drive it down to 3/4ths full, then top it off to full again to dilute the seafoam as fast as possible.

But really, you're fine.
 

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Hellawut??
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Dude, your fine... i ran 16oz's through my car when my light was on.....

im not kidding either...

your going to get bad mileage for the next full tank maybe.... but after a while it will pick up...

I now AVERAGE 23.8 for this current tank of gas that i have gone 258 miles on so far.... :)!!

It includes cold starts... highway driving city driving spirted driving short times of idling

Today on a FLAT road on the way home... 5th gear 50mph i was getting 32.8 mile per gallon... i almost wanted to take a video
 
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