[Ozarkguy]

One question . I changed fuel filters and when it started the fuel showed about 1 inch in the sight glass.. Now I see no fuel.. That seems odd

You have air in your filter..that's why Richard mentioned ATF ..You fill the filter before installing.. Filter works better that way   

This is the additive I use.. It separates the water so your filters/separator can catch it.. 
http://www.howeslube.com/dieseltreat.php. 
The only time I've had problems is this year when I got lazy and didn't put it in..  
It's also important to drain the tank sump on a regular basis. 
There is a whole discussion to be had on how water gets in the stations fuel.. But temp settle time has a lot to do with it.  On my jet fuel tank farm..we let it settle 8 hr before pumping into the trucks...n sumped daily..