If they're road use vehicles, then no.
You can only use red diesel in the vehicles that are not operated on highway maintained roads. And most semi trucks are on the roads. So, no.
One 'version' of heating oil (#2 oil) is also called 'offroad diesel' and is used in tractors and other offroad equipment. It contains red dye to distinguish it from 'regular' diesel fuel. This is to show whether or not you are paying the 'road taxes' If you are using untaxed red fuel in a diesel car, for instance, you're in trouble.
Diesel fuel (known as gas oil in some countries) falls into the same general range of petroleum distillates as No. 2 fuel oil, which is commonly used as a heating fuel for buildings or as 'red diesel' fuel for off-road agricultural vehicles, emergency generators, etc. In the US, diesel intended for on-road or commercial vehicle use (which is not dyed, and is sometimes called white diesel) has to be refined to a lower sulfur content, whereas No. 2 oil or red diesel does not have to be refined as much. No. 2 oil or red diesel are thus cheaper to produce but more deleterious to air quality and machinery, since the sulfur content of the fuel oil reacts with moisture to form sulfuric acid. Since these three products are functionally interchangeable, and since the taxes on road diesel are also higher than on red diesel or No. 2 oil, government regulations in most countries require that off-road diesel be dyed so that inspectors, vendors, and purchasers can distinguish between the various products. Illegal use of off-road diesel or No. 2 oil as fuel for on-road trucks or construction equipment is still a common practice.
red diesel or kerosene.
No, a water filter will not remove the dye from red diesel.
In the USA, highway fuel varies from clear to yellow. Off road fuel is dyed red.
They can use either on-road diesel (billed out as reefer fuel, as its use is non-taxable) or red dyed off-road diesel.
Diesel used in non road vehicles like tractors and heavy equipment. It is dyed red and is illegal to use in highway vehicles like trucks.
It's just a dye to differentiate it from other grades of fuel. Some diesel fuel has a red dye to indicate that it is ultra-low sulfur grade.
Same as red diesel for jet engined planes
fuel oil for a boiler and off road diesel is usually died red. diesel in my area has a yellow tint, I've heard of other shades in other parts of the country
No. The only difference is a red dye added to off-road diesel to denote non-taxable use.