I don't know if these are rejects from Subaru,they seem to be popping up for sale everywhere,has anyone notice these don't work at all,look and smells like upper cylinder cleaner but doesn't work,put some into a very dirty manifold and not one puff of smoke,normally you smoke the whole street out.

Where did you get it from ?
Is it in a Subaru can ?

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Not every manifold smokes the whole street up buddy.

I know not all of them smoke up,but my turbo Mazda always smokes up and it did not make one puff this time,they are definitely Subaru ones,I bought 2 boxes from a seller on Rexnet.

If its too good to be true....

Then again if its priced 4 times retail its not always going to be good either!

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I am only an asshole on the internet :)

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It could be just a bad batch.

Ive found not every can smokes it up either, Ive had it hit and miss with doing that on my car, and I buy the can(s) from Subaru

It contains-
Butane - 10%
Propane - 10%
Aliphatic/Aromatic Hydrocarbons (toluene, benzene, acetone etc) - 60%
Ammonium Hydroxide -10%
Butyl cellosolve - 10% (This is the foaming additive)

As long as the hyrdocarbons are there it should work...........

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china knockoffs?

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Long live the WRC

Could be Stace ,99% water 1% of whatever to make it smell like Upper cylinder cleaner.