Using Biodiesel in Your Vehicle
Biodiesel can be used in most diesel engines without modification
Do I need to make any modifications to my engine?
Biodiesel will run in most conventional diesel engines without any modifications, although additional care should be taken for vehicles built before 1988.With the introduction of low-sulphur diesel, cars built after 1988 were fitted with synthetic as opposed to rubber pipes. Since biodiesel gradually degrades rubber hoses and gaskets, these should be replaced with synthetic (plastic) components.
Is there an issue with newer diesel engines?
Most new diesel engines utilize common rail fuel injection systems, involving high fuel pressures. This, together with the highly-tuned electronic management systems may not allow the engine to run smoothly on 100% biodiesel.For these engines, we recommend a B20 blend (20% biofuel, 80% mineral diesel).
Will using biofuel affect my warranty?
For newer vehicles, some manufacturers may warranty up to a 30% blend. If you choose to use this fuel it is essential you check with the manufacturer that biodiesel is suitable, particularly for newer vehicles.
How often should I change my fuel filter?
Biodiesel is an excellent solvent and therefore breaks down deposits (tars, varnishes, waxes….etc) left behind by mineral diesel.We recommend a fuel filter change shortly after you start using biodiesel (about 500-1,000 miles), but thereafter, biodiesel’s natural cleaning properties will help to prolong the life of your engine parts (filters, injectors, pumps…etc).
Is there any additional maintenance required?
Biodiesel is hydroscopic so may absorb moisture from the air particularly when stored for a long time.We therefore recommend that the engine oil and filters be checked more frequently and changed when required to avoid corrosion.
Is biodiesel suitable for use all year round?
In winter, biodiesel made from used cooking oil goes ‘sticky’ at about -30 Celsius. This is where the fuel begins to gel or wax and is called the cloud point.We add an anti-waxing agent into our biodiesel to alleviate this problem.