Just a quick post to show what I did to get Sea Foam into the intake tract easily and evenly every time...

I have been using Sea Foam for years and years in every vehicle I have ever owned, everything from muscle cars to direct injection newer engines, always with positive results. My daily driven 2004 Carrera 4S just passed 75K miles and I really wanted to put Sea Foam to the test but wanted to ensure the Sea Foam went in properly , so I took the aluminum tube from my EVOMS intake, and drilled and tapped it with the proper thread, then installed brass fittings that suit my needs using copper RTV and a gasket to seal it properly. Also this was an ideal time to clean the MAF with MAF cleaner. Now as you can see from the photos I can add Sea Foam into the intake tract very easily any time I see fit, the location is behind the MAF but in front of the TB, so the Sea Foam will clean the throttle body, my IPD plenum and everything beyond as the engines vacuum pulls the chemical in.

I recommend doing this with a warm engine, I pour half the bottle in the gas tank and then put the other half of the bottle in thru this intake tube.

Best Wishes Everyone

 

very interesting..last time on tried it on another vehicle the car smoked like a locomotive which I assume it did the job, lasted about 5 minutes.I would do it right before oil change

 

my opinion on this....and i am not saying i am right, but maybe just nervous about doing this...is that if the engine is fine, and running nice...why do it??? I think it is running rough or some reason particularly, give it a shot...otherwise just hold off

not saying i am right, but I have heard some not good stories too

 

Seafoam is effectively this, if you burn this you would get the smoke anyway. I have made a fortune getting old civics and trucks that would not run right with the stuff. Not valuable enough to pull the motor out and do it properly, but enough to get someone down the road. Modern motors not so much, though it does clean injectors really well if put in the tank.

4 parts Diesel 2 parts naphtha 1 part IPA

 

weary microbe, my beer of choice is IPA,,my system should be spotless::::}}

 

This works great, but do it out of your neighborhood. It will smoke more than you could imagine. Your neighbors may complain. Also, any intake vacuum line should suck the Seafoam in and works just fine as well.

 

I have to agree here.

 

I would normally do this on a neglected high mileage older car that warranted it. But on a newer Porsche with only 75k miles and the assumption that synthetic oil was used on regular OCI's, I dunno. Why fix what ain't broke applies here IMO. Seems a lot of effort for a fog show.
Watch out for cylinder scoring...

 

Sea Foam is a great and proven product. I don't, however, see the benefit to all the (great by the way) work you did. Simply put it in the tank and it will mix with the gasoline and enter the fuel system evenly.