Denny, it hasn't been quite 30 years yet but I"m counting. The last company I worked for, over 15 years, did some trials of their own and they used Kroil exclusively. I have two quart bottles of it that I use to fill a small spray bottle I keep on my work bench. I hope I live to use it all up. I'll be 114 years old by then. Whoopeee.
