Anyone Use Power Service Cetane Boost

I use it on my 2005 6.0 because you usually don't see the cetane rating at the pump, and as bdowling points out there is a real need because many times diesel fuel does not meet the minimum requirement, This was pointed out to me by a diesel engineer so I use it as insurance. I sometimes notice a difference when I tow on steep grades.

Thanks ronschamingjr for the warning about using too much, didn't realize it could gel like that. I tend to use too much in the winter in an effort to prevent fuel gelling. Duh!