i think it is supposed to smoke to show that it is working.. i watched a video on youtube that had a guy calling someone that works at seafoam and he said that its supposed to smoke more when your engine is dirtier and not as much when it is cleaner, but i still think i needed more in my vacuum tube..
Also, i watched the one with the jeep where he put it in like you said about one full can in the tank, 1/2 in the crankcase, and 1/2 in the vacuum hose.. i guess that is what i should do soon or something.. i might try it again in a bit and see if i get more smoke next time. probably not though haha...
alright thanks for the video! Next time I will run it half through the tank and half in the vacuum tube.. Hopefully there will be more smoke and more cleaning etc.. I might have just not gotten enough in there to make a difference much.. I have noticed that it has helped steady the idle, and it seems to be running with a little more response.. Also it does not bog as often after cold starts, but it always will...
Thanks guys! I'll post here again maybe this weekend, maybe in a week.. I don't know..
From what I understand, the Seafoam itself should create some smoke no matter what condition the engine is in as it is adding a substance that's basically oil based to the mix kind of like your engine burning oil. I use it in mine before every oil change and it seems to helps quite a bit and it quietened my tapping quite a bit. Good Luck!
Yeah I know, I might change it out this weekend.. The can does say that it doesn't hurt to leave it in though just because it is petroleum based etc.. But I'll still get it changed out soon because it needs one within about 250 miles.. And that's what I thought at first because my engine is carbureted not fuel injected, because I heard that the smoke mostly comes from putting it through the vacuum tube, and that's where I didn't put much to begin with.. But maybe it is because of the normal carburetors and no fuel injection.. We will see I guess!
I just went to the SeaFoam website and they advised no need to change the oil after adding (see FAQ's)
My concern is, does it smoke until your gas tank runs out? Or should you do this on a fairly low gas tank?
If you add it to your gas tank it acts mainly as a fuel injector/carb cleaner, and I have never noticed any smoke. Putting it in a vacuum line allows it to act as a top end cleaner in which case it smokes like crazy for a few minutes. I'm not saying that you absolutely have to change oil after you put it in a vacuum line, but it just makes sense to me, and it's pretty easy to arrange it so that you do it when you change your oil.
it does not put out any smoke that i have noticed since i put it in my gas tank... it shouldnt from the gas tank really at all.. but after you put it in the vacuum tube then it puts out smoke, because i think that is where it all burns out of.. also, you do not have to change the oil right after, but it probably couldnt hurt... so far in 3 days of running it in my jeep i have noticed that i have a little bit better gas milage, a little bit better of throttle response, a little bit better of idling, and a little bit less bog after cold starts.. so far i am impressed how much it has helped, and i would recommend it to anybody so far!! as long as they do it right anyways haha..
thanks again guys, and ill probably do it again in a week or 2 when i fill up the tank again.
Not to say that Seafoam is the cause but I put it in my Jeep and my Wife's Trailblazer in teh oil and didn't change the oil shortly afterwards. It may be a coincidence but the oil pressure gauge on her's started acting very funny about a week or so later and mine started messing up within three weeks. This was a few months ago and they have both since started working normal again but I have since started changing the oil within a few days of Seafoam
yeah the seafoam i think thickens up the oil and that might have been the cause of it...
also, the idle in my jeep used to be off beat (it kind of sounds rough, and kind of bumpy/poppy etc..) and now that i am running seafoam it seems to be a lot smoother, and idles a little bit higher and doesnt want to die like it used to..