Monaro RFS approach to winter.
Part 2. Winter Diesel (Alpine Diesel)
During the winter months, some diesel engines may experience difficulties starting and / or running. This is caused by the formation of wax crystals blocking the fuel filters and lines.
All diesel fuel contains wax. The wax provides several benefits including high energy content, lubricity (reducing friction), stability, and viscosity.
Under warmer conditions, the wax is a liquid in the fuel. When diesel fuel gets cold enough the wax starts to crystallize (solidify).
If the temperature is sufficiently low enough, crystals will form to block the fuel filter and the engine may stop due to fuel starvation.
Fuel suppliers on the Monaro are supplied with Alpine Diesel which has a significantly lower tendency to waxing. (Alpine Diesel is usually available from May each year)
What can you do?
Fuel tanks should be filled with at least 75% Alpine Diesel before the cold snap arrives.
Fuel Additives
Additives like Roxdiesel Antifreeze are used by some RFS Districts and Council workshops.
Roxdiesel Antifreeze inhibits and modifies wax crystal growth, offering effective cold flow management for many of the currently available diesel fuels and blends. Best results are achieved by using winter/alpine diesel and Roxdiesel Antifreeze.
It is important to add the Roxdiesel to the fuel on a warmer day. Add the Roxdiesel to the fuel prior to topping up with fresh fuel. The turbulence of filling will mix the Roxdiesel through the fuel. A dosage rate of 1 litre of Roxdiesel to 500 litres of diesel fuel is required in the coldest areas (Monaro Team RFS Districts)
Please check with your Operations Officer or your Council workshop before adding fuel additives.