No, I've used Atf before, but I dont think it does THAT much. I was told along time ago by one of my instructors in tech school to use a cup of diesel in the crankcase every oil change, I've never tried it yet, but he swore by it and everyone of his cars had tons of miles on them with no issues. I've just never had the balls to do it. The purple jeep is gonna get it here soon. The procedure I described I've posted up many of times on

. It works. This lifter has been stuck for a long time, the previous owner did it after about a year and the lifter unstuck for a few weeks then came back, he just never did it again. I actually did the same thing back in early febuary to it when he brought it to my shop. Only I held it at 4k for like a min. The tick went away for a few mins and came back. The Jeep has set since monday morning. This weekend I'll fire it up to see if its back. The 91 has had the worse lifter tick I've ever heard, so my hopes wern't too high for it to fix it, but it did. Drove it about 500 miles last weekend with no engine issues. Also, I used to do this to my DD xj about once a month, just for about a min or little more. It sounds rediculous I know.