I used to do this on my 99 TL and 05 TL, some CEL lights pop up but went away after few days. The car run smoother and MPG improves
I want to do this for my 06 RL but I am little scare since this car has more sensors, just want to ask if anyone here has done this before and what's the problem if any. Thanks for your opinion.

 

Snake oil; SeaFoam does nothing to improve the smoothness of an engine or to improve fuel economy.

 

I just found a guy did this:
https://acurazine.com/forums/second-...-miles-752412/

 

just do it and tackle the problems if they arrive

 

Purely anecdotal, and as such, irrelevant.

 

I'm aiming at doing this tomorrow morning.

Any contra-indications?

 

Pure waste of money.

 

It won't even clean?

Like cleaning O2 sensors and Cat?

 

Nope, no chance.

 

Just do it and see for yourself