clorox bleach in diesel

I believe bleach is heavier than diesel fuel. If so, it should go to the bottom of the tank. Hopefully the tank has a low point drain plug. If it does you should be able to drain the bleach out of that drain. The bleach should not mix with fuel so it should come out first. Catch the bleach in a container and compare it with the amount you put in. If you get the same amount you put in I would not worry about it, if it is less you still have a problem. I would not start the engine until the bleach is out of the tank.