Fuel system additives? Options

[D-Man]

Okay, it seems that people are putting all kinds of stuff into their fuel systems to clear out all the unwanted material, and to improve MPG.

I've been hearing of Sea-Foam, Lucas Oil, and Various other detergents/cleaners. I wanna get this ball rolling so we can figure out what is indeed best for our systems.

So, What are ya'lls opinions?

Personally, i use a detergent based injector cleaner every few months or so, not that it causes a big difference, but i like to think that that 6-7 bucks keeps my injectors clean so that i wont have to notice a big difference, and prevent problems before they occur.

This post has been edited by D-Man: Mar 19, 2008 - 2:05 PM

[alltracman78]

I've only had good results with 2 things.

None of the bottled stuff you get at auto stores seem to do much of anything, but in all fairness I've never done any kind of scientific test to check.

Seafoam is good stuff. I usually don't put any in the gas, and never put any in the oil. It cured a 2 year misfire back when I first got my current Alltrac. For those of you interested Deep Creep [ http://www.seafoamsales.com/deepCreepTech.htm ] is a spray version of Seafoam, and will clean some things better [because it's aerosoled].

But hands down BG is the best. I'm not talking about the 44K stuff, I've never used it. I mean the shop stuff. Take a look at BG 9210 Inject-A-Flush® Apparatus and BG AIS Cleaning Tool [along with the cleaners used with them]. This is what we used at the last dealer I worked at. Because we were curious, we took a before and after borescope [looked at the inside if the cylinder and head] on a late 90s Camry 4 cyl [5SFE]. It went from being covered in carbon to looking almost new.

A lot of the success is how it's put into the engine.
It's actively sprayed [pressurized and sprayed out a nozzle], which mixes it better with air, while the fuel injector cleaner is forced in through the fuel line. No gas, just the cleaner, so it's not diluted at all.