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Refer to the manufacturer's instructions for this one. On-road diesel is recommended for use in diesel motors in general. Remember also that on-road diesel used for purposes for which the use of off-road diesel would be legal is non-taxable, which, in the case of an on-road diesel fuel purchase, will be translated into a tax refund.
DERV stands for Diesel Engine Road Vehicle
They can use either on-road diesel (billed out as reefer fuel, as its use is non-taxable) or red dyed off-road diesel.
yes,it is safe to put off road diesel fuel not only in tractor but also in other vehicles
You can not legally use off road fuel in a licenced road vehicle
No. The only difference is a red dye added to off-road diesel to denote non-taxable use.
Since 2007 most diesel pumped at any station in the USA or Canada is ULSD, regardless if it's on-road (clear) diesel, or off-road (dyed) diesel. The only difference is the fuel is that by using it as off road the taxes are not the same and it is cheaper. Dyed diesel will not affect your engine.
Diesel for road vehicles is known as DERV (Fuel for Diesel Engined Road Vehicles) or ULSD (Ultra Low Sulphur Diesel which has a reduced sulphur content) and is white in colour.
In theory off road diesel is the same as that you would buy from the filling station although it may not be as pure or contain the engine preserving additives that the major fuel companies add to the diesel you buy at the filling station. In many countries the duty paid on Road fuel is Higher than that of off road diesel and as a result you could be breaking the law if driving a vehicle on public roads that is being fueled with off road Diesel.
Yes. The difference is that off road fuel contains purple dye. If the tractor is older you may want to add some tranmission oil to the fuel as new Low Sulpher Diesel does not lubricate as well as the older diesel. As well you can add a diesel fuel conditioner which helps restore the lubrication properties of the fuel.
It is a tax issue. Dyed diesel fuel is not taxed, and as long as the fuel is used on the farm it can be run in anything, but when dyed fuel is used on a road vehicle you are cheating your state and town of tax revenue needed to maintain roadways.
In the USA, highway fuel varies from clear to yellow. Off road fuel is dyed red.