I didnt read the whole thread. Heres my 2 cents --

Ive done this a few times and I think it works. Use the hose off the bpv.




You will need to rig up a funnel and straw combo of somesort. Then you pour it into the hose Im holding.



Have somone idle the car ~ 2000-2500 rpms. Slowly pour it in, the car will want to die, but as long as its poured slowly and steadily it will keep running. Most subaru tuners say to pour the whole can in...but the bottle says 1/3. I did 1/3 can twice in a row...lots of smoke and the car felt smoother.

You can also put it in the oil and gas....Ive done both but never noticed a difference. I DID feel a difference when running it through the bpv.

 

I've used it, too, and noticed alittle bit of a difference when run through the bov hose. Nothing diff when poured into gas or oil. I've heard diesel or kerosene works the same (that's essentially what it is). My dad used to run diesel through gas cars when they had certain problems.