The first time I did it I got a **** load of smoke and I ran it through the brake booster vac line. I've heard that you're supposed to do 1/3 vac, 1/3 oil, 1/3 gas tank. Also if you put it in your oil you're supposed to change the oil very soon.
Also I've heard to run it through the pcv valve so you get both heads, where running it through the vac line just gets one head?? Any truth to that?
I've seen where some people run it through until the engine kills itself, but that doesn't seem like such a good idea (hydrolock)
When do you know to turn off the engine and wait and let it sit? Just after you get done pouring? I did it so long ago I can't remember.
Need to do this soon.