So I've been looking at youtube videos of seafoam. Should it really be used? What's the best way on a 01? Just curious if this is really worth it or not.

 

When I did I rigged up a funnel to some copper pipe, I can take a pic of that today if you'd like. It seemed to help for me, but alot of people claim it's "snake oil". It CAN ruin your o2 sensors, so if Indiana is an emissions testing state you're better off just staying away from running through a vacuum line. However, I put it in my oil (many say not to) and I could visably see a difference looking in the oil fill spot on the cam cover, you just have to change the oil relatively soon. It might do some good in the gas tank too, for what its worth. I had my injectors off the other day and was looking at the screen on them not too long after I dumped almost a whole can in the gas and they looked clean and shiney.

Bottom line, use at your own risk. It's probably about 50/50 around here for those who hate it, to those who like it.

 

https://mustangforums.com/forum/search.php

 

It is never needed, nor should it be used, in a properly maintained engine--regardless of mileage. There is no manufacturer of which I am aware that recommends any such treatment in either the intake or engine oil, and if used can screw up a bunch of things.

In improperly maintained engines it's effect will range from very little to complete catastrophe, the latter if it washes away the gunk that was keeping the engine sealed running. It was compounded in the late 40s/early 50s for "spring cleaning" of marine engines (that's the "sea" part) that were often run cold, badly maintained, and/or stored for long periods with little to no preparation.

 

My 2000 gt had a funny idle. I seafoamed it. All better. Do the vacuum lines and the gas. if you use synthetic oil you shouldn't need to do the crankcase. My mechanic loves it. And he recommended it to me. And no he doesn't sell it.

 

I know mopar makes a combustion chamber cleaner that works on a similar principle to seafoam. While not an outright recommendation from a manufacturer, that's pretty dang close. That being said, I've never felt a significant difference after seafoam. Good excuse to tear it up around the neighborhood though.

 

So if I would choose to do it, where is the most effective place to add it? And how long do you need to drive around to clear it all out?

 

I agree with CliffyK on this topic.
I wouldnt use this stuff in my lawnmower to be honest.
If you want to use a fuel system cleaner that cleans as it goes and most would agree its great stuff.

get a bottle of Chevron Techtron and use it every other tank full.(Only product i trust)


As for Seafoam I stay far away

 

I've used it; not on my mustang, but on some older higher miles cars that weren't maintained. I never had any problems, it did a great job of cleaning the inside of my engine. Just make sure if you use it, only run the engine 10 minutes or so at a high idle (1500) and then do a full oil change. I would then do another full oil change a few hundred miles after using it. If it breaks up any sludge it will clog your new oil filter in no time.

 

If this seafoam can cause stuff to break up and clog filter.
My guess is it would clog oil journals before filter .Newer engines has smaller oil journals these days most of the reason 20\50 isnt used in new engines today and 0-30 or 5-30 is used.

Not to good for motor if that happens