Can You Use Red Diesel As Heating Oil?

Heating oil and red diesel are not the same thing (off-road fuel). Despite the fact that they are both tax-free and painted red, they contain varying amounts of sulfur. Sulfur content in heating oil is 500 parts per million, while red diesel is less than 15 parts per million. Red diesel can be used to replace heating oil, however heating oil cannot be used to replace red diesel due to its high sulfur level, which is harmful to the environment.

Is red diesel the same as heating oil?

The term “heating oil” refers to the fuel used in central heating systems. Gas oil (sometimes called red diesel or 35-second oil) is mostly used in commercial and agricultural applications. Kerosene (also known as 28-second oil or home heating oil) is a lighter oil that is utilized in many households.

Can I use diesel instead of heating oil?

In almost all furnaces, diesel, as supplied at many gas stations, is a suitable replacement for home heating oil. Pouring diesel fuel into the tank can tide you over until a delivery arrives if you’re on the verge of running out of heating oil or have already run out.

Can I use red diesel for heating?

Is it possible to use red diesel as a heating oil? Yes, red diesel is frequently utilized in heating systems. When you transition from red diesel (gas oil) to our industrial heating oil, however, you will save money (IHO).

Can I put red diesel in my heating oil tank?

Any diesel-powered engine or machinery can use red diesel. It’s also frequently substituted for heating oil, however we don’t recommend using it in boilers or furnaces. Our furnace fuel for household consumers, kerosene, is a better solution for heating reasons for industry.

It’s permissible to utilize it in vehicles and machinery that don’t travel on public roadways. It is significantly rebated to help businesses like as construction, agriculture, and others deal with the financial burden of fuel costs.

Can I use red diesel instead of kerosene?

In a kerosene heater, any diesel fuel will work. The type of diesel you choose, though, may have an impact on performance.

As a general rule, you should use #1 diesel or ULSD heating oil in your heater.

It doesn’t matter if it’s dyed red or not; red diesel is less taxed and consequently less expensive than clear diesel.

#1 Diesel

This diesel is extremely similar to kerosene. It burns cleaner than diesel #2 since the paraffin wax has been removed. Because it has a higher viscosity than #2 diesel, it draws up the wick faster and is less likely to gel in cold conditions.

#2 Diesel

Diesel #2 has a lower level of refinement than diesel #1. In a kerosene heater, it will operate, but it will not burn as cleanly or easily as diesel #1. It is, nevertheless, less expensive and has a higher energy capacity.

Why is it dyed red?

The difference between dyed diesel and clear diesel purchased at the pump is insignificant. The dye is there for tax reasons: on-road diesel is taxed at a greater rate than off-road diesel.

Because red diesel does not have a road tax, it is substantially less expensive than clear diesel.

It’s legal to use in a heater.

Red diesel, on the other hand, is illegal to use in a car.

Red-dyed diesel used to have a higher sulfur content than clear fuel.

This isn’t the case any longer.

All red diesel for off-road vehicles must be ultra-low sulfur diesel (ULSD) as of 2014, which means it must contain fewer than 15 parts per million of sulfur.

Diesel Heating Oil

This is when things become perplexing. Heating oil, like off-road diesel, is coloured red. This is to distinguish it from on-road diesel, which is taxed. Heating oil, on the other hand, isn’t usually the same as the red-dyed diesel used in tractors and other off-road vehicles.

The Clean Air Act does not apply to heating oil, which can contain more than 15 parts per million of sulfur.

If used in an unvented kerosene heater, certain home heating oil may contain significant levels of sulfur and may stink!

However, the majority of residential heating oil is ULSD.

This is because New York and several other Northeastern states now have rules stating that home heating oil cannot contain more than 15 parts per million sulfur.

As a result, practically all diesel heating oil sold in the Northeast is ULSD, and your kerosene heater will not stink.


Yes, biodiesel can be used in a kerosene heater. When you buy biodiesel, you may expect it to include 5% organics and 95% diesel. It works just as well in a kerosene heater as it does in a standard diesel heater. If you create your own biodiesel, the purity and viscosity of the finished product will determine how well it burns.

Is it illegal to use red diesel?

Red diesel is regular mineral diesel that has been dyed red to indicate a lower duty rate. The colour and the chemical indicators it contains have no effect on the fuel’s usage or function.

Because red diesel is a rebated fuel, it is taxed at a lower rate than regular white diesel found at gas stations around the country.

The use of red diesel in automobiles on public highways is prohibited (although there are some exceptions such as when gritting roads). Most off-road vehicles, machinery, and commercial heating systems can run on gas oil.

Is diesel the same as fuel oil?

The hydrocarbons in diesel and fuel oil are relatively comparable, unlike the hydrocarbons in gasoline and diesel. In several instances, they are nearly identical. Diesel fuels are made up of hydrocarbons “According to the US Department of Health and Human Services, “are approximately identical to fuel oils used for heating (fuel oils no. 1, no. 2, and no. 4).” A blend of aliphatic and aromatic hydrocarbons makes up diesel and fuel oils. “The hydrogen-saturated aliphatic alkanes (paraffins) and cycloalkanes (naphthenes) make up about 80-90 percent of the fuel oils. Aromatics (e.g., benzene) and olefins (e.g., styrene and indene) make up 10-20% and 1% of the fuel oils, respectively.”

Diesel and fuel oils have extremely similar hydrocarbon compositions. However, there are various forms of diesel. The distinctions in diesel grades are determined by two factors. One distinction between fuel classes is the level of pollutants, particularly sulfur. The second factor is the cetane level of various grades.

Sulfur is the pollutant in diesel that causes the biggest worry among people concerned about diesel emissions’ environmental and health implications. In its natural state, sulfur is neither harmful nor a serious pollutant. However, as sulfur oxidizes to form sulfur oxides, the molecules become hazardous to the environment as well as human, flora, and fauna health.

How much diesel can I put in my oil tank?

There are particular techniques to pour diesel into your oil tank to avoid producing problems, as indicated above. If you don’t intend to utilize diesel as a long-term solution, there is no restriction to the amount of fuel you can use at once while filling your tank. To securely add diesel to your heating oil tank, follow the procedures below.

  • You’ll need a container that can carry at least ten gallons of diesel fuel to get started. To distinguish diesel from any other fuels you may have on hand, choose a yellow canister that says “diesel.”
  • Purchase the fuel at your local gas station. Purchase five to ten gallons of heating oil, depending on how long you anticipate you’ll be without it.
  • Go to the oil tank’s fill pipe on the house’s outside. Remove the cap and pour the fuel directly into the gas tank through the fill pipe.
  • Wait five minutes before resuming use of the furnace. As a result, any sediment that has been stirred up might settle back down. Only clean gasoline should pass through the pipes upon startup once the residue has settled at the bottom, and your system should be safe from clogging.
  • If your system has been clogged or sludged, you’ll most likely need to hire a professional to clear out the oil filter or fuel oil lines.

Is diesel fuel flammable?

A lit match will go out if thrown into a puddle of diesel fuel. This is due to the fact that diesel is far less combustible than gasoline. It needs a lot of pressure or a long flame to ignite diesel in an automobile.

What can I use red diesel for?

In June 2019, the United Kingdom became the first large economy in the world to adopt legislation ensuring that its contribution to global warming will be eliminated by 2050. The plan is for the UK to achieve net zero greenhouse gas emissions by 2050, as opposed to the prior goal of at least an 80% decrease from 1990 levels. Given that air pollution is one of the most persistent dangers to public health in the UK, the government also released an ambitious new strategy to clean up the air and save lives in 2019.

Red diesel is a type of diesel that is mostly used for off-road applications, such as powering bulldozers and cranes in the construction industry or drilling for oil. It accounts for almost 15% of all diesel consumed in the UK and produces nearly 14 million tonnes of carbon dioxide per year. In 2018, it was projected that red diesel used in the construction and infrastructure building industries contributed 7% of nitrogen oxide emissions and 8% of PM10 (a form of particulate matter) emissions in London.

To help fulfill its climate change and air quality targets, the government declared in Budget 2020 that it would phase out the use of red diesel and rebated biodiesel in most industries starting in April 2022. From April 2022, most users of red diesel, including motorists, will be taxed at the regular rate for diesel, which more accurately represents the negative impact of the emissions they emit. The elimination of most red diesel entitlements will also assist to ensure that consumers of polluting fuels like diesel are incentivised to improve the energy efficiency of their vehicles and machinery, invest in cleaner alternatives, or simply use less fuel.