Buying Biodiesel

If you are interested in evaluating our product, please Contact Us. Biodiesel New Zealand only supplies vegetable oil-based Biodiesel. We deliver our fuel to customers’ tanks (farms, contractors and industrial users). We do not have a drive-up filling facility for vehicles but can fill drums.
What to look for when considering Biodiesel

bullet Does your supplier know about the NZS 7500: 2005 Standard?
This standard specifies the requirements and test methods for Biodiesel to be used either as automotive fuel for diesel engines at 100% concentration, or as a blend component for automotive fuel for compression ignition engines.

bullet Have they had their product tested and can they show that it meets the standard?

bullet What Blend are they offering you?
You should ensure the supplier has experimented with that blend at the temperatures you expect to be operating your vehicle in.

bullet Is the Biodiesel they are offering made from tallow or vegetable oil?
If the Biodiesel is tallow-based, we do not recommend running any more than a B5 (5%) blend. Any higher percentage means you will need to consider making modifications to your fuel system. For more on this, see our Cold Weather Biodiesel Products page.

Vegetable oil-based Biodiesel can be blended from B5 through to B100, depending on the conditions and the feedstock used in the production process. Always ask the person dispensing the fuel what they are supplying.

bullet Get advice about storing Biodiesel
If stored correctly, Biodiesel can be stored safely for up to 12 months. If you are planning to store your Biodiesel before using it, get advice about the best way to do this and, if you bought it in the warmer months, also ask whether the fuel will handle the colder weather.

bullet Using Biodiesel to run indoor heating equipment and boilers/burners
Much of the above are not issues if you intend to use the fuel to run indoor heaters and burners or boilers. In these applications the quality of the Biodiesel transesterification process is not as critical.

In these applications, the main concern is storage. If the tank is outside, you need to know the cloud point of the fuel because, below this temperature, it can start clogging lines and gelling in the tank. There are simple ways to avoid this.