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The City of Portland, Oregon

Planning and Sustainability

Innovation. Collaboration. Practical Solutions.

Phone: 503-823-7700

Curbside Hotline: 503-823-7202

1900 SW 4th Ave, Suite 7100, Portland, OR 97201

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Should I be concerned about my fuel filters?

No. Unlike higher blends of biodiesel (higher than B20) which can have solvent-like properties and can cause fuel filter issues, B5 is too diluted to have that effect.
However, ultra low sulfur diesel has been found to cause sediment to accumulate in the storage tank, which can break loose and enter the supply line. Therefore it is always good practice to filter your diesel.