Tech Article Title Author Date
SeaFoam Motor Treatment BSK 2006

OK, so you heard about seafoam and its totally magically appearing wonders that it can do for you engine but have no idea on how to use it and where to use it?

No Problem! There is actually nothing complicated about it all so here is a quick writeup on its use with pics on the 1,8t engine. SeaFoam's website has instructions about its use that can be found here SeaFoam can be found at your local automotive parts retailer for about 6$ per can. Buy 2 cans for each application and then use 1 can every other season to keep things running clean.

Take one can and pour its ENTIRE content into the gas tank. Make sure that you fill up afterwards to mix the fuel and the seafoam to some extend.

You can also add seafoam into your crankcase aka oil to dissolve any sludge problems that might be on its way without you knowing about it. Add 1/3 to 1/2 of a can into the oil if you desire to do so, but change your oil shortly there after. Some people suggest driving for 10miles with it in the oil and change it while other state to let the car idle for some minutes and to then drain it. Either way, the foam will thin up your oil so its up to you what you do. I drove for several hundred miles with it in the oil and had no issues but that might change later down the road.

As for the next application you should have a small section of pvc or vacuum hose. I use clear 3/16th ID hose that will be used to suction out some seafoam from the can into the manifold. I use around 1/3 of a can when doing the sucking method below.

Disconnect the vacuum line coming from the DV to the IM and connect the hoses that you will be using to suction to it. The car will be running in idle for this process.

With the car idling and the hose connected you will feel and hear air getting sucked through the hose. The car will basically suck up the seafoam itself.

Slowly dip the hose into the can and let it suck in some fluid slowly through the manifold. If you dip the hose in all the way the car will immediately die due to the flooding of seafoam. I start slowly and will dip the hose in some more after some seconds when the idle has stabilized. Once i see a good amount of smoke coming out of the exhaust i turn of the car and disconnect my seafoam setup to let the seafoam eat through anything carbon deposit related. ENGINE should be TURNED OFF

You could do this for the front vaccum hose connection in the manifold and the rear one that is supplying the FPR. I do my front one only and have great results. Its up to you which way you do it.

In case you want to get creative get around 3 feet of line and a "t" fitting to make a "dual seafoam inductor" piece.

Let the car sit for around 10-20 minutes depending on how much patience you have and crank it up. It might take some seconds for it to crank up, but once it does the whole area around your car will be ENGULFED in smoke.

Take the car for a good spin and call it a day. You should now have an improved response to throttle input and might even get better gas mileage out of it.

Check your plugs afterwards and replace them if needed but i never had an issue with them after a seafoam treatment.

In case you accidently overflooded the engine with the seafoam through the IM. You might get a CEL with some saved codes that say misfires on all cylinders.. No big deal either, vagcom locator is your friend.

that should be it to hopefully clear up all these posts about how to use seafoam! Its straight forward and simple.
Yes it does work for me but your results may vary, i highly doubt that they will but they might. This stuff is just as great as aerokroil is a penetrating oil.

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