Biodiesel will run in any conventional, unmodified diesel engine.

Biodiesel has very good solvent properties and therefore breaks down deposits (tars, varnishes, waxes etc) left by mineral diesel. 

We therefore recommend a fuel filter change shortly after you start using (after about 500-1,000 miles).

Winter use

In winter, biodiesel made from used cooking oil will tend to gel up at about -30 Celcius.  We will be introducing an anti-waxing agent

into our biodiesel to alleviate this problem.  If there are no coldflow additives, it is advisable to use low % blends (no higher than 50% biodiesel).

Biodiesel will gradually degrade rubber hoses and gaskets in older cars.  With the introduction of low sulphur diesel, cars built after

1988 have synthetic pipes which are fine for 100% biodiesel.  As a general rule, check your hoses and gaskets if your vehicle is older

than 1990. All natural rubber components in the fuel delivery system should be replaced with synthetic (plastic) components.