Jay’s Garage is Portland’s Biodiesel Fuel Station

Jay’s Garage in Southeast Portland is the number one provider of high content biodiesel fuel and Portland auto repair.  We offer B50 blend from November 15 to April 1 and B99 blend from April 2 to November 14. If you drive a diesel car, truck, or RV you should consider the benefits of filling up with biodiesel.Biodiesel is a special diesel fuel manufactured from vegetable oils, animal fats or recycled restaurant greases. It is safe, biodegradable and produces less air pollutants than petroleum-based diesel.Biodiesel can be used in its pure form (B100) or blended with petroleum diesel. Common blends include B2 (2% biodiesel), B5 and B20.

Most auto manufacturers approve blends up to B5 and some approve blends up to B20. Check with your owner’s manual or vehicle manufacturer to determine the right blend for your vehicle, using the incorrect blend of biodiesel could damage your engine and/or void your manufacturer’s warranty.

* Never fuel your vehicle with clean or used grease or vegetable oil that has not been converted to biodiesel. It will damage and possibly destroy your car’s engine.

Biodiesel Compared to Petroleum Diesel


  • Domestically produced from non-petroluem, renewable resources
  • Can be used in most diesel engines, especially newer ones
  • Less air pollutants (other than nitrogen oxides)
  • Less greenhouse gas emissions (e.g., B20 reduces CO2 by 15%)
  • Biodegradable
  • Non-toxic
  • Safer to handle


  • Use of blends above B5 not yet approved by many auto makers
  • Lower fuel economy and power (10% lower for B100, 2% for B20)
  • Currently more expensive
  • B100 generally not suitable for use in low temperatures
  • Concerns about B100’s impact on engine durability
  • Slight increase in nitrogen oxide emissions possible in some circumstances

* Information from the US Department of Energy at http://www.fueleconomy.gov/feg/biodiesel.shtml