(908) 995-4825  
760 Frenchtown Road, PO Box 619, Milford, NJ 08848-0619
JD Stem, Master HVACR Contractor Lic. #4246 • PA HIC #PA032216

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Fill out this quick contact form to get in touch with Stem Brothers. Need something more specific? Get in touch with us on our general contact form here.

NOTE: If you are having a heat emergency, please call the office immediately. Do not use e-mail to alert us to an emergency. Thank you!











  Biodiesel


Biodiesel is a clean-burning, renewable fuel made with American soybeans. It produces lower emissions, and its natural cleaning agents and lubricants improve engine performance while reducing maintenance costs. It can be used in any diesel engine with no modifications. The advantages of our Biodiesel:

  • Advanced Engine Performance: Increases longevity and overall health of your engine.
  • Cleaner & Environmentally Sound: Improves local air quality; reduced tail pipe emissions compared to regular diesel.
  • Supports American Energy Independence: Reduces our need for foreign oil imports.

We sell clear and dyed biodiesel fuel for on-road trucks and off-road vehicles. Our diesel fuel includes winter additives for smooth running vehicles. 

Screen Shot 2015-06-25 at 10.10.38 AM.pngFilling Station Location: Please visit our Biodiesel Automated Fueling System, which is located at our Milford bulk plant on Frenchtown Road in Milford, NJ. 

Both clear on-road biodiesel and dyed off-road biodiesel can be pumped at any time day or night. Our customers are required to purchase 100 gallons per month or more and we will provide them a key with access to the pumps that are open 24 hours a day. 

Billing is done at the end of each month and there is a 5-cent per gallon discount if the bill is paid within 7 days of invoicing. We also offer additional volume discounts on the clear Biodiesel for purchases over 200 gallons a month. 

If you are interested in becoming part of our Biodiesel Key Club, feel free to contact us either by calling (908) 996-4441contacting us online, or faxing us at (908) 996-3508. We will be happy to create your personal key to competitively priced dyed or clear biodiesel fuel available whenever you need it. 

We are here to serve you. Our office is open Monday through Friday from 8:00 a.m. to 4:30 p.m. and Saturday from 8:00 a.m. to noon.