has anybody use seafoam on a tpi motor ?

 

Yes, but I didn't pour it into the gas tank or crank case, I used it w/ a fuel injector cleaner canister. So the engine was running off a 50/50 mix of SF & gas. It was a maintence cleaning.

 

Added a can to vac line from charcoal canister. Split a can b/w gas and oil. Did not have a problem I was trying to solve, but if you think it cleans out your (whatever) I doubt it. Later pulled apart the plenum and it was grimy / dirty as ever. Under rocker covers dirty as ever, supposedly adding to the oil cleans out the sludge. I vote against it.

 

Seafoam should be left in the sea... it sucks big fat donkey ding-ding...

 

There is a lot of threads regarding seafoam, I have used it in my gas tank and seemed to work great! So to each their own. Do some more reading. Type seafoam in search bar. You will see all the threads and what others have to say!

 

I use it in my Harley every year for winter sorage and it works great, I just put a can of it in the tank of my TA last night. I have never used it in the intake system or the crank case. It's good stuff to clean the fuel system out.