Snake Oil with a nice smoke show to let you know how well it works.
Seriousely.........
Ditto.
A.) It only smokes when you put straight into the engine, through a vacum line into the intake. This is because this method is the most effective/rapid at removing internal deposits.
B.) The smoke is the engine burning off carbon deposits loosened by the SeaFoam when used through the intake. It will also only smoke on a dirty engine.
False on A and incorrect on B. Take a gander at the
MSDS for Seafoam as published by the manufacturer. You'll see it's mostly pale oil (similar to WD-40), Napthalene (the stuff in moth balls), and a small portion of isopropyl alcohol. Run it through your engine, and the majority of the smoke you see coming out the tailpipe is the pale oil hitting your hot catalytic converters. If anything really makes a difference, it's the 10% alcohol that's vaporizing *some* of the carbon.
... snip... but the SeaFoam took care of the "leftover" issues from the carbon deposits on the valves/in the combustion chambers.
Ever looked at a valve? Here's mine with about 135,000 miles on it.
Do you
really think that little bit of carbon build-up is going to cause an issue?
Really?
On the other hand, I ran a can through another car, that had had a recent head gasket replacement. The seafoam did NOT produce any smoke, because (I'm assuming) the head gasket failure did a pretty good job of steam cleaning the inside of the engine.
No way. I find it hard to believe you can run a can of oil through the engine and NOT have it smoke, no matter how pale or thin the oil is.
C.) There are MANY, MANY people on this board (including some of the most knowledgable and respected members), as well as in the "real world" who have used SeaFoam and been very satisified with the results. It is not snake oil.
Using that logic, I guess a hundred million Turbonators and their knock-offs can't be wrong, can they?
Are most of the $2.99 STP/Gumout/etc.... Fuel Injector cleaners a waste? Yes. There basically kereosene, with a few other things, and they don't really do much. The SeaFoam, when used through the intake, gives a clear indication that it is working.
So, kerosene is so much different than pale oil? You really think so?
Try it for yourself. Based on the tone of your comment, I'm guessing that you either 1.) never used Seafoam, 2.) Didn't use it properly, or 3.) used it on a car that either didn't need it or had other issues. Try it on an older high mileage that has no real engine problems, but maybe just feels a bit "off", maybe is down on fuel economy. Maybe it pings going up hills, and never used to. You might be surprised.
......just don't do it when the neighbors are home....
There's no disputing that it may help remove some carbon from the combustion chamber itself... but so will kerosene, alcohol, washer fluid, and just straight water. The cleaning action so many attribute to the wonders of SeaFoam can be accomplished for a fraction of the cost using other means, and none of them really *fix* anything. Some small amount of carbon is going to build up on the intake valves of a running engine. Some small portion of the fuel is going to carbonize on the inside of the combustion chamber. Some small portion of un-burnt fuel is going to get vaporized in the cats. But any engine designed in the last 20 years is designed to recognize those conditions and compensate for them as necessary, and generally speaking, none of those conditions will be enough to cause a perceptible loss of power to the average driver.
I'm quite sure if there was a need to run a can of some sort of solvent through the engine at regular intervals, the OEMs would highly recommend it. I guess the guys in Dearborn that spent a decade developing that engine just had no idea what a crappy job they did and how an $8 bottle of wonder-mix could solve all their ails.
(Yeah, I'm callin snake oil too)