Another Seafoam Question

[js593]

yeah x2 on the harsh additive thats why i didnt use it in the oil.

In the oil is decently fine. its made to mix with oil, and should only be used for a couple KM's before your change. Its desiged to loosen the crap in the crevaces in the block, so it gets it all out.

[alifeva]

Carbon build up was a concern of mine on my old Targa moped but we only cleaned out the exhaust to allow more air flow and that was by hand. I used to take apart the exhaust and toothbrush/wire the carbon and engine degrease it a bit. It really improved air flow on that 2 cycle moped of mine.

But I reckon since our cars are pretty darn old, as long as there is proper air flow from the block, down the header pipes, through the cat, and out the exhaust, the natural carbon build up inside the engine shouldn't be of much concern. I figure if the heat don't eat it up, the residue build up is probably there to stay unless one day I decide to take apart the block and want to clean the carbon piece by piece, by hand. As you guys mentioned the additive is known to be aggressive and who knows my old gaskets might be shot but that carbon build up might have created a good natural barrier for more compression and a proper sealing.

I've come to the conclusion (And this is just an opinion not a fact) that I will stay away from this after market additive for now until I have a back up project car to work on to see for myself the after effects of sea foam.

Hope this helps any newbie curious about using sea foam.

[Blk EX Coupe]

In the oil is decently fine. its made to mix with oil, and should only be used for a couple KM's before your change. Its desiged to loosen the crap in the crevaces in the block, so it gets it all out.

Yeah, thats why on a lot of older car it starts to develop leaks. Since the build up is what is keeping the oil from seeping out on a lot of old engines, when it gets cleaned out leaks develop similar to the risk of running synthetic oil on older engines. My f22 had 95% new oil seals, and it didn't develop any new leaks or problems after seafoaming my car regularly. I just had to change my spark plugs more often since fouled spark plugs are pretty common after feeding the brake booster with seafoam since there is carbon buildup on the plugs afterwards. Seafoam is some strong stuff, and that is why they say to add only 1/3rd of the can at a time not the whole thing.

On my 2jz I've done the brake booster treatment and the car ran by itself after the keys were out of the ignition since seafoam is similar to fuel. I've also added 1/3rd of a can into my gas tank. I don't plan on adding it to my oil though since the engine has already been flushed out when the seals were changed.