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I've only used it on carbureted V-8's, (archive)

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Posted by MicahO on October 19, 2001 at 11:03:32:

In Reply to: Anyone ever use GM Top Engine Cleaner. posted by Paul G. on October 19, 2001 at 10:50:29:

but the principle would be the same - pour it in slowly at first while idling high to get things loosened up, then dump the second half of the can in, which will stall the engine and leave the cleaner in the cylinders for a soak. 15-30 minutes later you do a hard restart, which will blow a huge nasty bunch of crap out your tailpipe. Watch where that big black stain ends up getting deposited. It can also have some effect on catalytic converters - I have never used it on modern cat-equipped vehicles.

It's not pretty, and I am not at all sure how one would get it into our I6 intakes. Perhaps some repeated uses of ventil sauber in the tank would be enough?



You use it to clear out deposits on the valves and injectors and stuff.

I wonder if anyone has used it and can explain how to do it.

Paul
1991 535ia





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