The correct amount would be all of 5 ounces in a 5 quart oil pan. Pouring in a full 16oz can is probably what caused young guy's problem... that's more than three times the recommended amount. You can't blame the product for the misuse of people who can't follow instructions.

I never put ANY kind of additive in either the gas or oil of vehicles that are regularly driven... they're just not necessary. I used to use gas line antifreeze occasionally when I lived in the great white north and I always put some Sea Foam in my seldom used generator gas tank for long term storage (along with using only ethanol free gas).

 

Dumbass. You yourself just posted the instructions where it CLEARLY says, 1 oz of seafoam for every qt of oil.
And then you tell me to dump a 16oz can in my crankcase and see how it turns out?
Just how many quarts of oil do you think a typical gasoline engine holds?
Moron.

 

Well apparently my first post wasn't clear enough for you AZ guy. He did dump the whole can in. So yes, Seafoam did do this.

 

So I will agree with you on that point.
Seafoam, if used incorrectly, may and can cause catastrophic engine failure when used incorrectly by people who knowingly and intentionally do not follow instructions as written on the product container by the manufacturer.

But to say it will ruin an engine outright if you use it is not true, and you know it.
Too many people, and not just on this site, keep spreading BS rumors which doesn't do anyone any good.

 

Trust me, between working in a machine shop and a dealer, we see some really stupid things. It's worse when i know who are "Askholes". you tell them what NOT to do and they do it anyway. I have no sympathy for them.

 

I prefer Marvel Mystery Oil over Sea Foam. I've had a couple no start situations with a tractor and chainsaw that sat for extended time periods firing right up after MMO got dumped in the gas tank.

 

I've never used MMO but I've heard good things about it. I think I'll try it next time I fill up my generator.

 

Seafoam is a lighter top end lube Than Marvel, Marvel burns but will smoke just a little if you get too much in the fuel.
We have stored tractors and equipment fogged with Marvel for years and they start right up when neeed.

 

Yes and yes.

Just about any product can lead to catastrophic failure if used incorrectly. Can't blame the product for issues caused by misuse at the hands of the end user. Imagine pouring three times the recommended amount of oil into the engine...can you really blame the oil itself (brand, grade, blend, etc.) for whatever might happen next?

I agree here too. If maintenance is proper, daily driven cars shouldn't really need any sort of additives. On the other hand, when you own garage queens that rarely get more than one tank of fuel per year, certain blends of additives do seem to help in the fuel. I prefer Red Line SI-1 for this purpose, blended with Stabil, the results have been nothing short of excellent. Folks talk about all the troubles they have from storing cars with E10 fuel for extended periods, etc., but I've had none of those issues using my house blend on a continual basis over the last couple of decades.

 

I've used many cans of seafoam, I believe it works within reason. Wait, let me rephrase that. I KNOW it works within reason. One such example sticks out in my mind....years ago my neighbor knew I worked on atv's. Well his atv would not stay running...would not idle. You could keep giving it throttle and force it to stay running...classic low speed jet is clogged. Easy fix, once you get the carb out. Well his atv was a pain to get t he carb out and I didnt feel like doing it.....knowing I had used seafoam in atv's and lawn equipment in the past and had success....I told him put half a can of seafoam in the tank and go ride it. It actually cleaned it out and it started idling again. I've also had my pressure washer surge badly along with a generator doing the same....seafoam cleared that up.
Marvel mystery oil....its cheap and it works also. I think it works moreso in the oil vs gas but I've used it in a two stroke weedeater as a two stroke oil replacement without engine damage. I've also used regular synthetic motor oil as a substitute for 2 stroke oil.
In the past couple weeks, my buddy had some tapping lifters in his 300k mile silverado 4.8, I told him use a quart of MMO or two quarts of trans fluid in his oil. He used the MMO and said the tapping is almost gone. Sometimes it'll help...sometimes it won't. Its damn sure worth trying it before pulling the damn heads off. My wife had a 99 firebird years ago. She got free oil changes at work and they used Caker state oil and either that oil is total trash like i think it is, or they just never changed the oil and told her they did. It developed a loud lifter tap. I pulled the valve cover off and was horrified at what I saw....it was extremely caked up. I changed the oil, three quarts oil, two quarts dexron trans fluid. Drove 100 miles and did it again and it complety got rid of the tap. the oil was disgusting when I drained it after 300 miles.
i also use seafoam to decarb, sucking it through vacuum lines.
Hey, you do you...I'll do me. You think it doesnt work, cool. You won't convince me otherwise since i've seen results myself.

 

kFXGUY, I completely agree. I maintain a fleet ove high dollar golf course equipment 3+million dollars worth . And use it as a stabilizer/ pre winterizer . at 2oz per gal (in the fuel only). Does me just fine. Rarely have a fuel related problem unless it's sat for 2+ years. I will also attest to it working very well on 2cycle mix fuel engine's Evan more so. All my chain saws/weedeaters/hedgetrimmers/ETC.... run on 93 octane and 4oz see foam per 2 gal gas can.