I would check with Cummins, Kubota and see ifone of their diesels will run on heating oil. The old ones would, not sure about new diesels. #2 heating oil and Diesel are basically the same stuff.
Info that may help.
Kerosene
This is the lightest fuel oil for home heating. It is made by refining #1 fuel oil and filtering impurities. The result is a much cleaner burn so it's safe for indoor use. The liquid has a lower viscosity and boiling point. Kerosene is often used to power portable heat sources outdoors. It can also be used indoors if there is no furnace installed such as in new construction sites. Many rely on kerosene during power blackouts and camping trips. Kerosene lamps can provide light that lasts for a long time. Some of these lamps have beautiful designs and odor suppressors.
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Since kerosene is derived from #1 fuel oil, we can expect many similarities between the two. Since the latter has less processing, it is a bit heavier with higher viscosity and more impurities. It is often used as an energy source for portable heaters and outdoor stoves. Since it does not produce a clean burn, it should not be used for indoor applications. The exhaust fumes can be harmful to those who breathe them in. Outside, the impurities are diluted in the air so it does not cause as much harm.
This should be familiar to most people since it is widely available across the country in fuel pumps. There is untaxed diesel fuel that is recognizable with its
red dye. This is typically used for construction machines and other off-road vehicles. Its low sulfur content is deemed as eco-friendly. On the other hand, taxed diesel remains undyed but has a natural light green tone. This is the fuel used for cars and trucks on public roads. The only real difference is the higher price. As for home heating applications, diesel can be mixed with #1 fuel oil to minimize sludge formation during cold months. However, it is best to discuss this with a heating expert beforehand.
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Diesel fuel and #2 fuel oil are virtually the same fuel in terms of chemical composition. The main difference lies in their intended use. #2 fuel oil enjoys a tax-free status to keep prices low and help people heat their homes. This is an essential need in winter, after all. It goes into boilers and furnaces instead of cars. It even has the same red dye as in untaxed diesel fuel. Many refer to this fuel oil as home heating oil because of its designated application.
You can find #2 fuel oil mixed with #1 fuel oil for lower viscosity and greater furnace efficiency. Some companies refer to this as the kerosene mix or the home heating oil winter blend.
Given the similarities between these two types of fuel, it is possible to use them interchangeably in theory. However, there are reasons why people don't generally do this in practice. If you ever run out of fuel for your furnace and deliveries are delayed, then you can go to a pump and purchase diesel as an alternative. It's impractical for long-term use since diesel is more expensive than N#2 fuel oil but it may be worth it during emergencies.
The reverse, putting #2 fuel oil in a diesel car, should never be done. It is illegal because of the tax regulations. If you get pulled over and cops see that you are using the red-dyed fuel, then you may face charges. Adhere to the law and use each product for its intended applications.