Sea Foam?

[John]

I picked up some of this stuff yesterday, the can says to run 1/3 through the oil, 1/3 through the tank and 1/3 through the vacuum booster. This is going in a 96 GMC with th 7.4. I can not find any vac lines going anywhere near the booster. Can I run it through the PCV valve? Any words of wisdom from the pro wrenches?

 

[6Mile]

PCV valve would be fine, but do it slow to prevent to possibility of hydro locking a cyl. if you run it through the oil, be sure to change the oil per the instructions.

 

[xrated]

huh I just always dump it in the gas...what's the benis from adding it to the oil?

 

[thinksnow]

It helps clean deposits in the engine and the fuel system. I have it in all of my vehicles gas and oil. Run it in the sleds, UTVs and motorcycles. Good stuff.

I ran 500 miles on one bike when I bought it used. The oil stayed clean. Put Seafoam in the gas and oil and within 100 miles the oil was black.

 

[John]

if you run it through the oil, be sure to change the oil per the instructions.

There are no instructions regarding that on the can. What have you seen? I planned on running it on a 2000 mile trip this weekend through the 10th and changing the oil when I got back. No good?

 

[winter brew]

If there is alot of sluge buildup, it might work great to break some loose and let travel to clog some oil passages.

 

[Snorider]

There are no instructions regarding that on the can. What have you seen? I planned on running it on a 2000 mile trip this weekend through the 10th and changing the oil when I got back. No good?

that should be fine. everytime i get a rig i usually do that, and you can tell when the maintence has been poor, so i usually change after 500 or so the first time, but 2000 should be a-ok.

 

[Snorider]

If there is alot of sluge buildup, it might work great to break some loose and let travel to clog some oil passages.

if it clogs the passages in the oil filter I'm stoked.

 

[Superjag]

LISTEN VERY CAREFULLY!!!:
If you put it in the vacuum line, do it somewhere not near your house. I did this about a month ago, and so much d*mn smoke came out you literally could not see my garage. When I took off down the street, it looked like freaking Uncle Buck. I could see nothing out of the rearview mirrors (any of them) but a giant cloud of white smoke.
But, having said that, it actually did seem to clean up the idle and low-end acceleration.

Here are the instructions I used:
Take 8 oz of Seafoam in a measuring cup. While the car is running, slowly dump approximately 4 of the ounces into the vacuum line (I used the one by the booster, but it said just about any vacuum line should work). It will get sucked in by the vacuum. The car will idle rough and sputter while you do it.
After you dump in the first 4 ounces, dump the last four ounces in quickly. The car should choke out and die. If it doesn't, shut it off. Either way, let it sit for about 15 minutes or so. (In the mean time, reconnect the vacuum line). Then start it back up. Let it idle for about 5-10 minutes. It may run a bit rough at first. It will be smoking pretty good while it idles, but nothing like it's about to when you start driving. Now take it out on the highway and let her breathe a bit. Once you get to highway speeds, mnost of the smoke should have dissipated, but be warned: On the way to the highway you are going to look like the back end of your car is on fire. Maybe yours won't smoke as much as mine did, but holy sh*t did mine smoke. Talk about feeling like a dumb-a$$ as the neighbors watch you drive down the street...

Hope that helps.

 

[John]

LISTEN VERY CAREFULLY!!!:
If you put it in the vacuum line, do it somewhere not near your house. I did this about a month ago, and so much d*mn smoke came out you literally could not see my garage. When I took off down the street, it looked like freaking Uncle Buck. I could see nothing out of the rearview mirrors (any of them) but a giant cloud of white smoke.
But, having said that, it actually did seem to clean up the idle and low-end acceleration.

Here are the instructions I used:
Take 8 oz of Seafoam in a measuring cup. While the car is running, slowly dump approximately 4 of the ounces into the vacuum line (I used the one by the booster, but it said just about any vacuum line should work). It will get sucked in by the vacuum. The car will idle rough and sputter while you do it.
After you dump in the first 4 ounces, dump the last four ounces in quickly. The car should choke out and die. If it doesn't, shut it off. Either way, let it sit for about 15 minutes or so. (In the mean time, reconnect the vacuum line). Then start it back up. Let it idle for about 5-10 minutes. It may run a bit rough at first. It will be smoking pretty good while it idles, but nothing like it's about to when you start driving. Now take it out on the highway and let her breathe a bit. Once you get to highway speeds, mnost of the smoke should have dissipated, but be warned: On the way to the highway you are going to look like the back end of your car is on fire. Maybe yours won't smoke as much as mine did, but holy sh*t did mine smoke. Talk about feeling like a dumb-a$$ as the neighbors watch you drive down the street...

Hope that helps.

Good info, thanks.

Uncle buck...LOL!

 

[BU1]

I had a Chev with a 5.3 with a dirty injector. Ran a full can thru the PCV hose, slow at first and then fast enough at the end to stall the engine. Let it sit overnight. I think I took care of most of the mosquitos in the area when I fired it up. Holy shiat for white smoke! Never had another problem with that truck.

I use it every spring in the sleds. Will never buy Stabil again.

 

[Rprecision]

Big blocks in 2500 and higher had hydra-boost boosters (Powered via power steering)

You have to be careful how much crap you throw down the old throttle body. Hydra lock and sometimes you break stuff loose you regret later

 

[snowbunny chaser]

So if i have dirty carbs on my toyota this stuff will clean it out if i put it in the tank?

 

[mynameislance]

That stuff works pretty good...I've used GM Top Engine Cleaner too, basically the same stuff but I think the GM stuff is a little more potent. If you spill it down the side of the can it eats the paint away

 

[Blk88GT]

My old POS 90 GMC did the same smokeout trick that Superjag experienced. It was unbelievable.

With that said, I noticed no difference in performance or fuel mileage afterwards.

 

[6Mile]

LOL this what you will get like what superJag described

http://www.youtube.com/watch?v=P-4EfjUU5o4