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What is Better, Gas or Diesel Class A RV?


What is the difference between a gas or diesel RV? A gas engine is the better choice for most people, especially those that drive 6k miles per year or less.


Diesel RV

If maintained very well, a diesel engine can run for a longer period. If you are planning on RVing full-time, this function is an advantage for you. Also, the engine of an RV that runs on diesel will last longer. If you want to sell off your RV, the longer engine life will bring in more monetary value for you.


Compared to gas RV, diesel RV, with very good torque, is better for climbing mountains. The superior low-end torque of the diesel RV is an added advantage when it comes to plying mountainous terrains. Gas RVs find it difficult to maintain speed while climbing. It also consumes more fuel and works your engine harder. Diesel RVs have more towing power than gas RVs.


A diesel RV economizes fuel more than that of gas. Almost always, diesel is more expensive than gas but considering that the diesel will be managed is encouraging.


Gas RV

Gas RVs are good for traveling longer miles than their diesel counterparts. The diesel exhaust fluid (DEF) is another aspect of the diesel RV. Before now, it was not easy to come by, but now, retailers like Walmart and most service stations have it.


This expense is unnecessary if you use a gas RV. Gas RV is cheaper than diesel RV and is easier to maintain. However, there is no significant difference in living space.


Having had a closer look at both of them, you can now decide which one to get. Your choice of an RV shouldn’t be based solely on the kind of fuel it uses. There are other factors to consider as well.



Other Factors To Consider


Maintenance; You have to consider the kind of maintenance routine you will employ in caring for your RV. If you plan to stay full time in your RV, you will consider where you will stay during your maintenance routine check. And if you plan to be part-time RVer, you will consider if you will have your RV checked when it is packed.


Travel style; You will consider how often you want to be RVing. Is it regularly? Is it seasonally? Will you RV only weekends and during the end of the year or on vacation? Your answer to these questions will determine the kind of RV to buy.


Size; You have to consider the size of the RV you want. Is it a small one of 25 ft long or smaller? Do you want to get a large RV of 38 ft long or a larger size?


Fuel; The rate at which you want to economize your fuel will determine the kind of RV you will get.



Diesel fuel is generally a liquid and combustible fuel that is utilized in vehicles. This fuel is mainly used in diesel engines, whose ignition doesn’t require any spark and will result in the compression and fuel injection to the main engine. Rudolf Diesel discovered diesel fuel when he was experimenting with his compression ignition engine in 1892. Rudolf diesel primarily made diesel engines use charcoal dust as fuel and mixed other oils like vegetable oils. 

The most widely recognized type of diesel fuel is the specific distillate of petroleum. 

However, alternatives such as biodiesel, BTL, or GTL, which are not derived from petroleum, are progressively being developed and adopted. To differentiate between the petroleum-derived diesel and the non-petroleum-derived diesel, the fuels are named differently. The petroleum-derived are called Petrodiesel, and the non-petroleum-derived fuels are called biodiesel.

The Different Forms of Diesel 

Diesel fuel can be obtained from various sources. They are available in numerous forms and can have different effects on humans and nature. Hence, due to their diversified nature, they can be differentiated into four types.

  1. Petrodiesel

Petrodiesel or petroleum-based diesel is the most common type of diesel available in the market. It can be obtained by partially refining the petroleum at temperatures between 200-degree Celsius and 350-degree Celsius at atmospheric pressure. This heating results in the mixing of carbon chains that are typically found in between 9 to 25 carbon chain molecules.


  1. Chemical Diesel

Chemical Diesel can be formed from any carbonaceous materials, including biomass, biogas, coal, petroleum, and many more. The crude oil is converted into gas to make a mixture, which is converted by the Fischer-Tropsch cycle to form a chemical diesel after refinement. Making a typical chemical diesel is called Biomass to Liquid, Gas to Liquid, or Coal to liquid process, depending upon the material used. 

One of the safer forms of Chemical diesel is the Paraffin synthetic diesel. It has a relatively low or no content of sulfur inside it. This property reduces the unregulated emission of toxic hydrocarbons, nitrous oxides, and particulates.

  1. Biodiesel or Organic Diesel

Biodiesel is obtained from animal fats and vegetable oil, which are basically unsaturated Fat Methyl Easters and are transesterified with methanol. It is generally created from numerous sorts of oil and most commonly, from rapeseed oil. In the USA, menthol can also be blend with vegetable oil and fats to create biodiesel. Transesterification involves using certain types of catalysts (Sodium or Potassium hydroxide) that help convert vegetable oil in the presence of methanol into biodiesel. 

During this process, there is a formation of unwanted By-product (Glycerin), which will be removed after the procedure, along with the traces of methanol. Pure Biodiesel, like B100, can be used in vehicles as an alternative source of diesel. However, scientists suggest that the use of pure biodiesels must be reduced, and a mixture of diesel and biodiesel must be applied for higher and more efficient performance.


What is the source of Diesel Fuel?

US Oil refineries produce one of the maximum amounts of diesel fuel all over the world. The diesel fuel burnt in the US has a sulfur content of 15 ppm or less, which is called ultra-low sulfur diesel. USLD is utilized as diesel fuel and as distillate heating oil. Most of the US distillate utilization occurs in vehicles and diesel motors and are balanced according to the range of pollution they emit.

In 2009, US treatment facilities created about 1.8 million barrels of USLD, out of which US people used 1.5 billion barrels. 

The United States traded about 0.4 billion barrels and imported about 0.1 barrels in 2019. The import track was about 5% of the complete utilization of USLD in the US. About 62% of USLD was imported from Canada, 13% from India, 13% from Columbia, and the rest were from other countries. There are various types of diesel fuels, out of which the Biodiesels contribute most of the import and export of diesel fuels in a country.

What are the Different uses of Diesel?

Unlike other gases and fuels, diesel-based fuels do not require any additional spark for ignition. A motor running on diesel packs the air insides the cylinder to create high pressure and withstand high temperature. The high temperature in the cylinder helps it withstand the high air variability and convert the thermal pressure into mechanical pressure by moving the piston. However, there are various things in which diesel fuel can be utilized. Let us know some of those things.

  1. Diesel in Trucks

Diesel is considered the most preferred type of fuel for transportation. The public vehicles like the buses and trucks which were previously powered by petroleum are now converted into diesel due to its efficiency, cheap cost, and low emission of toxic gases. 


  1. Diesel in Aircrafts

The first diesel-powered aircraft took off on 18 September 1828 at Packard Proving Grounds near Utica, Michigan. Germany and the United Kingdom designed diesel engines for aircraft by Dalmer-Benz and Beardmore. They delivered The Dalmer Benz DB 602 and Beardmore Typhoon in the late 1800s. The LZ 129 Hindenburg was fueled by four Dalmer Benz DB 602 16 chambered diesel motors, each with 1200 horsepower. The Beardmore typhoon controlled the disastrous R101 aircraft, worked for the empire career program in 1931.

More Uses

  • Low-quality diesel fuel was utilized as an extraction agent for liquid-liquid extraction of palladium from corrosive nitric mixtures. Such use has been proposed to isolate the splitting of palladium from PUREX raffinate, which originates from utilized atomic fuel. In this solvent extraction system, the diesel’s hydrocarbons act as a diluting agent, while the dialkyl sulfides act as the extractant. This extraction works by the solvation method. So far, neither a pilot-scale nor a full-scale plant has been built to coupe palladium.
  • Diesel fuel is often used as the primary ingredient of oil-based mud drilling fluid. The benefit of utilizing diesel is its efficiency and its ability of drilling a wide range of challenging and hard to reach areas. A diesel oil mud is often blended with up to 40% saline solution. Diesel oil is often replaced with vegetable oils, mineral oil, or synthetic food-grade oil-based drilling fluids, although diesel oil mud is still widespread in certain regions.
  • During the advancement of rocket science in Germany during World War I and II, J-2 Diesel fuel was utilized as the fuel segment in a few motors, including the BMW 109-718. J-2 diesel fuel was additionally used as fuel for gas turbines.


Bottom Line

Most of the transportation medium, including public transports, agricultural transports, military vehicles, use diesel motors. As a transportation fuel, diesel fuels offer a broad scope of performance, efficiency, and safety measures. The energy density of Diesel fuel is also greater than other liquid fuels; therefore, it provides more energy than the other fuels.

However, some bacteria are used to create diesel fuels as they can tolerate extreme temperature fluctuation and have the ability to grown in the dark. They can even survive in low oxygen.

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