I have just used it now and placed a small tube in the bottle. I removed the last manifold air sensor and placed the other end of the tube in. Unfortunately it sucked the whole fluid within a minute or so. i forgot to keep closing for 30 minutes. I didn't see smoke coming out of the exhaust. immediately after i noticed that the economy usage data read 0.3l/h on idle, it used to read 0.6 or 0.7l/h. Does that mean a problem happened or i broke anything? and also would i need to repeat the procedure again as no smoke came out and didn't keep spraying for 30 minutes. I am really worried about that economy meter reading. As i was expecting a lot of smoke like the videos i saw, i drove a little away from home in an open area. now i parked it back home and will see later how the engine will run. Please advice
