Chevy & GMC Vans

Well, I did a treatment of seafoam in the 95 the other day, when I replaced the radiator (again, only maybe 2 years later).

Oddly enough, even after 216k miles, the "cloud" you usually get out the back was quite small and short.

I actually added a little more than 1/3 bottle (like the instructions say), it was closer to a half.

Has anyone else had these results? I'm just curious if I possibly did it wrong (down the t-body application) or maybe my engine is just cleaner after this long?

Of course the rest went in the gas tank.

I did notice a smoother feel after the treatment, although I couldn't decide if it was the new radiator, or the seafoam (there was a hole in the core, so it wasn't cooling properly).

Sorry guys, no video. Wouldn't have been worth it anyway, haha.

i use Seafoam in all my vehicles and even my lawn mower. It will keep gas from going bad if you have a vehicle that sits a lot like my motorcycle when it rains so much like it has lately.

I have also used it directly in the crank case to break up sludge before an oil change.

if you've done a bit more hwy driving .. or the engine has been running hotter lately, it will burn up most of the carbon and crap itself. hence the small seafoam cloud.
seafoam works best on motors that haven't gotten to and stayed at operating temp very often. most of todays vehicles actually don't run very hot, even at operating temps.

For the first time, I used Seafoam Trans Tune last month in my 1963 ford falcon transmission. It had what they call a sleepy trans. Until it was warm, it wouldn't shift. I dumped Seafoam in it and it's been great ever since. I'm thrilled with it. I just hope it isn't temporary. I plan on a trans fluid change soon and we'll see if the trans will still shift cold. If it doesn't, I'll dump another can in there.

This was my first time using Seafoam. I'd definately try the the oil additive if I ever have the need.

Where do you guys pour the seafoam into?

Do you pull the air filter box, and the air intake stuff and pour seafoam in there? Do you use a spray bottle and spray it in or do you just pour some from the bottle?

Sorry that is probably a pretty noob question.

Seafoam suggests two methods, which can be found here http://www.seafoamsales.com/motorTuneUpTechGas.htm
I've done it by pouring it down the throttle body, or by pulling it in through the pcv line.
I liked the pcv hose method better. I hooked up a scrap piece of hose to the pcv port on the throttle body and put the other end in a container with the seafoam. A "C" clamp on the hose gave me sort of a valve control over the amount of seafoam flowing into the engine.

there are A LOT of videos on the net showing seafoam being used. and holy moly is there ever a lot of "smoke". it kinda scares me, but i haven't heard anything negative about the stuff.