Defender46

iTrader: (2)

I also would recommend the bg44k so you don't even risk damage. Steady cleaning through your fuel is going to show better and much safer results over time. Some old carbureted small block chevy I would have no problem dumping seafoam in the vacuum system.

CCJ22

iTrader: (26)

SO I was denied the TSB by 3 dealerships due to being out of warranty for the TSB that helps us IS250 owners with the car shaking at idle.

What's the consensus on this seafoam stuff? Is it as good as the TSB which states to clean the top of the engine and rid it of carbon buildup since that's whats causing IS250's to shake

lextasy08

iTrader: (2)

ive done it in the gas tank in my old truck, what are the benefits of doing it in the vaccum hose for the intake

Lexus@17

iTrader: (3)

proper way!
http://www.youtube.com/watch?v=vRAV5ln5cUc