Fuel/water separator filter turning black

[Volvo8873]

(09-06-2020 )Waterloo Wrote:  Wisconsin too I believe, almost to the point you cannot escape the corn or fryer oil. Food for fuel, stupidest thing I have ever heard of.

Wisconsin does not require biodiesel in the fuel. Some big name stations have it in their fuel like Flying J but almost all are straight diesel. Minnesota is 20% biodiesel.

It is kind of funny last year I fueled up in western MN at some station and they labeled their diesel “Soy Diesel” It was a high percentage of bio in it and it smelled like french fries! LOL The truck actually ran smoother it seemed? Fuel mileage was no different...