biosses Senior Member Joined Feb 1, 2017 Threads 80 Messages 389 Reaction score 83 Location Japan Vehicle(s) Civic Nov 22, 2017 Thread starter #1 any of you add engine cleaner to your fuel??? Sponsored
17siturb0 Senior Member Joined Dec 3, 2016 Threads 6 Messages 1,315 Reaction score 843 Location U.S North east Vehicle(s) 2017 civic si sedan, 2006 civic si coupe Nov 23, 2017 #2 Why would you? Cars still new. There’s absolutely no need for it.