LandCruiser
New member
There is no high sulfur diesel available in the US. In 2011 it was mandated that all diesel fuels in the US be ULSD. Both fuels are the same except for a red dye is added to the off road diesel. That is to mark it for easy identification as it is not taxed. If they catch you running red dyed off road diesel in on road trucks the fines are very serious.
That is the reason for the off road diesel being cheaper than on road diesel, it does not have all the taxes attached to it. There is no difference in the refining or production of the product.
That's probably where I remembered there being a difference. I haven't driven a diesel since 07.