Originally Posted By: bvance554
Originally Posted By: doublebase
The techron is used in many dealerships around the country - I've used it myself - but I've never used the other stuff. I've used Seafoam before as well, and it also is used at some Honda dealers. Personally I don't know how much good any of them do. Most fuel injectors have a spray pattern that allows the fuel to self clean across the face of the injector. And if you're thinking any of these products are going to remove hard carbon deposits...you're dreaming...unless you could continuously run 10,000 gallons of this stuff for a week straight. Will it remove some varnish if used on a regular basis? Yeah, but fuel itself will also do that...gasoline cleans like [censored] all by itself.
^^ Nailed it. But if I ever feel the urge to add anything it is always Techron.
True story...I have a honda accord with 282k miles on it. I've used seafoam on it pretty regularly...I've cleaned the throttle plate with injector cleaner (a must with these cars). But I still eventually ran into problems - I don't think that seasfoam made one single ounce of a difference. I eventually had to take the manifold off...scrape the carbon out of it...clean the egr tube with a coat hanger, clean the egr by hand and clean the IAC motor with a wire brush. That was the only way to get that stuff clean.
I've used techron and a couple of other things, but I only did it because it made me feel good...know what I mean? Do it for piece of mind if you want, but the truth is carbon doesn't come off unless you scrape it off. The stuff is nasty. No amount of any product is going to stop that - not when there are so many reasons why it forms in the first place...leaking oil rings, bad egr, bad iac, poor engine design, poor oci's, short trips, cold climates, hot climates...it's going to happen. And the cleanest thing you'll find on the upper portion of an engine is the injector faces because they always have fresh, clean fuel being sprayed across their surfaces.