So I am looking for some advice/ opinions.

About a week ago, I made a mistake by only putting about 10oz of the white bottle power service fuel additive in my 34-gallon tank.

Well, about two days later, it got down to about -7 degrees ambient temp.

My fuel gelled up a bit.

During my fight, I found that it was gelled enough to freeze up my FASS pump causing it to blow a fuse.

The weird part is it also blew the Fuze for the fuel heater. (Dual heaters installed).

I also used the red bottle power service fuel additive to get my stuff thawed out, which worked great.

About an hour later and the truck started again.

Do I need to put in a slightly bigger fuse for the heaters since I am running dual heaters and not single?

There is a 10 amp in it now.

Also, since I used the diesel 911, should I change the filters even though it says you don't have to on the bottle.

Trucks have been running fine, but I've heard many people say it is still necessary.

What are all your feelings?