Parry,
Are some companies more prone to gunk than others?
Rich
Hard to tell Rich.
I always prefer to buy a "Name Brand" diesel.........BP, Shell, Mobil, etc.
I think the problems are mainly from slow turnover sites.
In the yacht I always keep the tank full to prevent water condensing out of the air in the tank.
The more air in the tank the more water you can get from condensation.
This is often why there is water in Servo tanks.
I also use an additive to kill the alge/bacteria that can grow in diesel and turn it to sludge.
After having to clean out the tank once I said "never Again"
The best material for diesel tanks is alluminium, it significantly reduces water from condensation.
Cheers
Parry