There are three types of fuel that we will discuss for the purposes of this article. They are on road diesel, off road diesel and home heating oil. First, I will define what I am including in each category.
On road diesel is any diesel that is sold for vehicle use on the roads. A government road tax is included in the price of the fuel. Diesel sold in the U.S. for use on roads is ultra-low sulfur diesel (ULSD) containing less than 15 parts per million.
Off road diesel is sold strictly for off road use and is normally dyed red in color. Some of this may have up to 500 parts per million in sulfur content. This fuel will run fine in any of your vehicles. However if you are caught running this on the highways you can expect to receive a very healthy fine. In some jurisdictions, this can run into the thousands of dollars.
The third category is home heating oil. This is sold for use in your home heating systems and is not intended for use in a vehicle. Now I have heard, as I am sure you have of people running this successfully in their vehicles. Now home heating oil is close to diesel fuel. But there are several potential problems with using it
The first is that in some areas home heating oil may refer to a blend of different fuel oils, including kerosene, some of which may not be suitable for your engine.
Second home heating oil can contain up to 10,000 parts per million of sulfur. This is important because most diesel engines newer than 2007 will experience damage to their emission control systems from the high sulfur content.
Third home heating oil is not always treated with anti-smoke and antimicrobial agents, as is diesel fuel. If it is not treated, microbes which feed on the oil can clog your fuel filters, injectors, etc.
I have known of people who have mixed home heating oil with diesel fuel and ran it in older vehicle successfully. If you intend to run home heating oil in your vehicle, check with a good diesel mechanic and follow his advice.
One last thought is that you can fill your home heating oil tank with off road diesel fuel, in some areas there is very little difference in price. In the event of a major disaster, you could have a supply of several hundred gallons of fuel for your diesel engine.
4 thoughts on “What Type of Diesel Fuels Can You Run in Your Diesel Engines?”
If you live where it gets down to below freezing, make sure your diesel is rated for at least 10 degrees colder than your coldest expected temps. If you have a large tank for a stationary generator, you’ll need to anticipate for this. You can also get additives to add to fuel that has already gelled, if you failed to fill up with the winter grade in the first place. I’ve heard from a few folks that the additive should be used as a last resort, though.
I learned about this the hard way with my first diesel generator. The temp kept going down and I was oblivious to the fact that when I had my 275 gallon tank filled in the summer, it was going to turn to jelly when it got really cold. First clue was when my gravity feed delivery system stopped. Fortunately, the tank was only half full so I had it filled with winter fuel and by the next day, with a bit of stirring, the whole tank was OK for use.
Talk to your diesel supplier for the straight scoop for your area!
I didn’t know that diesel sold in the U.S. for use on roads is ultra-low sulfur diesel (ULSD) containing less than 15 parts per million. I bet that helps control air contamination. My uncle is trying to be a trucker so I’ll have to ask him if there are any other interesting facts about diesel.
Basically, the ones used in diesel fuel stations are these ULSD that contains less than 15 parts per million as you’ve mentioned. I don’t generally get it but it seems like this USLD is specially crafted for on-road vehicles as there’s the red dyed off road ones. That is relatively interesting to learn as I’ve been wondering if there’s a difference between heating oil diesel and the one in those fuel stations. Thanks for the informative article about the different types of diesel!
My Question will be would Low sulfur diesel hurt an Older Diesel generator