What do you guys think of SeaFoam? I put some in the gas tank. Should I put some in the oil? Should i put some in the throttle body? Should I put some in the vacuum lines?

Your thoughts on SeaFoam?

Does it work?

 

It's worked well for me with minor carbon build up, but don't expect miracles. I'm only used it in the gas tank and sucked into intake via vacuum line.

 

I've used it a few times.

The fuel gauge in a truck I had awhile back was reading funny and it cleared it up

Another time I had a slight hesitation and it seemed to help,the other times I noticed no results

 

ONLY add it to the oil if you are doing an oil change within 100 miles. You do NOT want it in the crankcase for a long time

 

its good to clean up thinks like gummed up or nasty fuel lines or act as say a stabilizer for fuel and it will clean carbon off the pistons with yee old vacuum method. But I have seen where water actually works better to clean carbon out than sea-foam. You mist it very carefully down the intake with something like a cup or an actual spray bottle if you want to be extra careful at part throttle for a little bit. Does a great job and really helps an old engine out.

 

i love the stuff,

i put some in the oil and tank.

look up a channel on youtube call chrisfix. he has some cool videos on the stuff

 

i have used it from time to time. its not a miracle cure all, but it does help. that said however, except for cleaning fuel injectors, i usually got more out of a 16 ounce bottle of coke filled with water and drizzling it down the intake while maintaining engine rpm at about 2000-2500, and then going out on the freeway and blowing the carbon out of the cylinders.

 

Yep, want the engine piping hot first though, then spray a little bit of H2O down the carb from an old Windex bottle or something like that, while running 2000-2500 RPM. The water/steam will loosen and blow the carbon out. I was always leery of dripping or pouring raw water, hydrolock takes less than you might think and would be a a Bad Thing.

Highway trips in rainy weather tend to have a similar cleaning effect. Norwegian tune-up.

 

I used it once when I got my truck in 2011. I put it in one of the tanks and simply drove it. It seemed to smooth the truck out a bit. Stinks a lot though. I haven't used it since so I have nothing else to compare it to.

 

I've used it a couple times in the intake manifold, fuel tank, and crankcase prior to oil change. It's most noticible when you put it in the intake since it smokes like crazy but other than that I haven't been able to tell whether it really did anything to help the vehicle. Vehicles ran pretty much the same for me after I'd done it. But, that's not to say I will never do it again, it must be doing something.

 

Straight up snake oil. Send me your money instead!

 

in the tank yes, in the vac lines (use the brake booster line as its the easy to access one) yes, only put it in the oil when your about to do an oil change, Brad says with in 100 miles, I would only do it with the Seafoam in for no more then 10 minutes ideling to get the gunk loosened up, but that is just me...


if you seafoam the vac lines, just turn the truck over (don't let it start, and you can pull a relay that will keep it from starting (its a light tan/grey one IIRC) and let it sit for as long as you can, (12 or more hours is best) and then when ready start the truck and prepair for a nice smoke show, just be sure your in a well ventilated area and not planing on going any where (smoke can be quite heavy) and let the truck sit for a bit then rev and hold to about 2,500 RPM to help blow the carbon/smoke ect out...

 

Should I put seafoam in my oil?

The answer is a resounding YES!

I bought an old 3.5 chevy that had a knocking issue. I put seafoam in the crankcase for 5,000 miles, changed the oil, and like magic the knock was gone!!!

Those chevy engines are known for knocking after 130,000 miles. This one now has 180,000 miles and is as quiet as a mouse

 

youre first problem was buying a piece of **** chevy 3.5l v6. the only GM 3.5l that should have existed was the 3.5l LX5 which fun fact, you can fit 12 gallons in the crankcase till its full to the oil fill.
It also was an engine that was designed to burn more oil than that 3.5 you have... 400 miles a quart was my mileage of oil.

If you want to see what happens after startup with that 3.5(the better one) here is after putting 12 gal of kerosene into the crankcase. experiment. valve seals definitely leaked.


heres also a pic of that 3.5l V6. better than yours... but glad it made less noise!

Im sorry if i sound cynical, I have a thing against the BS that replaced the venerable 3.8l

 

[QUOTE=AuroraGirl;20193587]youre first problem was buying a piece of **** chevy 3.5l v6. the only GM 3.5l that should have existed was the 3.5l LX5 which fun fact, you can fit 12 gallons in the crankcase till its full to the oil fill.
It also was an engine that was designed to burn more oil than that 3.5 you have... 400 miles a quart was my mileage of oil.

Wow! A quart of oil every 400 miles. That sucks.

But there was an engine that was even worse. Back in the 60's chevy made an engine with tephlon rings. That thing burned a quart of oil every 60 miles!!!