I searched but couldnt find anythign realitive to my question. Basically I was wondering what would cure carbon build-up. I read about seafoam, and some bad and good stories. I also read about Engine Restore - The oil additive. Im wondering which is the best route. My 91 std civic has the d15b1 in it, and about 110k on it. I dont want to kill this thing. Any help would be great!

-Thanks

 

sea foam is what everyone seems to use.

 

restore doesnt clean your engine, it makes it run better. If u want it to clean and also run better get seafoam!

 

sea foam + high mileage = bad.