Seafoam?

I have a 2007 prerunner and I am thinking about using Seafoam in the gas tank. Will it do any harm to a 4.0 engine and does toyota approve it? Appreciate any feedback Thanks,

 

Just ran a can in mine seemed to help with rough idle and winter fuel mix.
Actually gained .5 MPG. Others on TW use and gave me the idea to try it.

 

http://www.tacomaworld.com/forum/2nd-gen-tacomas/87952-seafoam-seafoam-seafoam.html

it's fine



doing it to mine when I get home

 

doubt toyota approves it but it is just like injector cleaner if used in the gas tank...i think (dont take my word) if you seafoam your truck alot alot it will start to eat up you cat but every now and then wont hurt. I have done mine two times through the vaccum lines where you see the seafoam "smoke show" and it has helped my idle alot.

 

+1