Check out my new problem! :)

[Volvo8873]

They also have a biocide that might work better at first.

https://powerservice.com/psp_product/bio...l-biocide/


I had to use it on my first truck as my fuel bacteria problem grew out of control and I didn’t know what damn thing about fuel bacteria at the time. After I treated it I think I went through 30 Davco filters in a month. I should’ve drain the tanks but I didn’t know any better at the time.