SeaFoam..gotten some mixed responses from people. Options

[Badkarma]

soo my celica is still getting pretty horrible gas mileage.19 mpg currently. haven't changed the o2 sensor(s) yet, but it isn't throwing any codes either. changed plugs, wires, cap, rotor, fuel filter, air filter, alignment...


Now i would like to give Seafoam a try. its a pretty potent clenser from what i hear. id like to get some responses from you all. what were your results, and how did you use it? (fuel tank only, vacuum only, intake only?...all?)
my friend tried it and it ended up blowing his pcv valve clean off the truck. it got melted as well, idk if it was complete coincidence or not.

i plan on just trying it in the tank for now.. but let me know how it worked for you.

Thanks, Erich.

[GriffGirl]

Here's a long thread containing the Seafoam debate. Just search "Seafoam" in this section of the board and you'll see there's been LOTS of debates about it.

At 19mpg you have nothing to lose but six bucks by Seafoaming the crap out of your car - via brake booster vacuum hose, shortly prior to an oil change. Change those o2 sensors though. Even if they're not throwing a code, they could very likely be the culprit.