Hi,
Thought this may be of interest
Re:Red Diesel. Tax Changes for canal users 1 Year, 3 Months ago
Red Diesel and White Diesel.
White diesel is called derv and is used on the highway so it is highly taxed. Red diesel is tax exempt and only used for agricultural or marine use .
There is no chemical difference other than the red die added to help the customs and excise when they check your tank.
As is the case for most of the refined products derived from petroleum crude oil, diesel oil has no specific "chemical composition". It is a mixture of dozens of different hydrocarbons, including those classified as: paraffins; olefins; aromatics; and naphthenes.
The physical properties of diesel oil vary somewhat from one refinery to another. However, in general, diesel oil has an initial boiling point temperature of about 300 degrees F and a final boiling point of about 625 degrees F. It also contains hydrocarbons ranging from those containing about 10 carbon atoms to those containing about 20 carbon atoms. It has a specific gravity of about 0.850 which is equivalent to an API gravity of 35.
Two diesel oils for which I have compositional data indicate that they contain about 75 weight percent paraffins and about 23 weight percent aromatics. The remaining 2 weight percent are resins.
Running a Gardner with the older 14:1 compression ratio pistons on White or Red Diesel will have no effect whatsoever on cold smoke. Cold white smoke on start-up was a low compression ration problem and not a flash point issue.
Later Gardner’s Euro classification was a bit of a joke, the green sprayers and green injection pump was a money making move, what improved emissions was the employment of 15:1 compression ratio pistons.
The vast majority of modern agricultural tractors and excavators by caterpillar that run on Red Diesel employ state of the art common rail fuel injection, which is not designed for a less refined fuel.
Paraffin
The physical properties of paraffin will vary to Kerosene. Gardner engines will run on Kerosene or household heating fuel of No. 1 Fuel type.
Kerosene
Kerosene has a lighter density than diesel oil, a lower boiling range than diesel oil (hence, it is more volatile than diesel oil), and it very probably has a much poorer Cetane Number than diesel oil. All of these factors will result in poorer performance of your diesel engine.
Damage in the fuel injection pump and sprayer tips can also be expected due to decreased lubrication performance of Kerosene. Gardner's suggested adding 1% lubricating oil to the Kesosene to overcome the lubrication issue. Adding engine oil to Kerosene further changed its character.
It is taken from a Gardner Forum Entry by a memeber who is a renowed expert on fuel oils. The Forum is well worth a visit, and registering to make use of all it's features.
Highly recommended to Gardner Owners - www.gardner-enthusiast.com
Hope this helps.
Albi.