Diesel RV vs. Gas RV

When choosing between gas or diesel for your RV, decide based on the features you think are essential. Likewise, know your purpose for utilizing your diesel or gas RV. Taking it on vacation or storing it away for winter will require one while using it as a permanent home requires another fuel.

Gas and diesel RVs differ in more ways than one, and more dissimilarities become magnified as time passes. Though there’s no absolute answer to their difference, their purpose will make it. The price, fuel efficiency, and luxury are three things you should consider when deciding between a diesel or a gas RV.

Which is Best Based on Price, Efficiency, and Comfort

A product’s cost, efficiency, comfort level, and convenience are the three main things we consider when buying something. We may not weigh each factor since some products don’t have them. However, in the case of RV gas vs. diesel, you can get optimum value for your money by choosing wisely.


The price is often the primary consideration when people shop for a new RV. First-time buyers tend to go with the less expensive ones, which means they’re more likely to choose gas over diesel. However, you should factor in other factors because not all the time, you save more money by purchasing cheaper products.

High-quality RVs are more prevalent in the market than less pricey but lower-quality diesel units. Moreover, the difference between the best luxury diesel motor RVs, which are way more expensive, and baseline gas vehicles, is immense. If you want to save some money and use your RV for occasional seasons, go for high-end gas models. On the other hand, a luxury diesel RV would be an excellent investment if you’re preparing for your retirement with a motorhome.

Fuel Efficiency

One primary concern of recreational vehicle owners is optimizing the motor engine’s efficiency and power. Diesel homes are more efficient than gas RVs since diesel fuel has a better energy value than gasoline. The higher density of diesel means it can bring up to ten percent better fuel economy.

Like in regular automobiles, RV owners want the most out of fuel consumption. Powerful engines of most motorhomes consume way more fuel than cars, especially when you travel on a cross-country trip. In this scenario, running a diesel-run RV will save you more money than driving a gas-run motorhome since diesel coaches have improved fuel efficiency.

Luxury and Comfort

Compare diesel vs. gas RV options from the same category, whether a class A luxury-level vehicle or a smaller and more maneuverable class C motorhome. Since the specifications of each are so different, comparing a luxury diesel pusher to a basic Class C or another smaller recreational vehicle makes no sense. Compare rigs of gas vs. diesel RV class C with similar size, for instance, then look more closely at the engine.

You focus on natural features like chassis, engines, and power with motor vehicles. However, you may overlook the level of comfort when you consider these prominent components. Choose the RV that gives you both tried-and-tested features, fantastic comfort, and luxury.

The fuel type can affect this facet of your RV, with most people thinking that the less expensive gas types can’t give luxury and comfort.

Many top manufacturers can turn gas RVs into luxury coaches. These models have an impressive set of electronics, rooms, and amenities. While gas RVs are less comfortable than diesel RVs, the difference becomes negligible over time. Diesel motor RVs have more excellent interiors and better components, which is great for recreational purposes.

How Fuel Type Affects RV Users’ Experience

Gas vs. diesel RV pros & cons can affect your overall experience, whether for a yearly vacation or as a permanent residence. The high cost of diesel can give you some headaches, but your frequent refilling when you use gas can give you the same stress. Gas and diesel have many differences aside from their cost, so it would help if you fully understood them.

Engine and power specs of diesel and gas RVs

Compression ratios, stroke lengths, combustion rates, and energy density give your engine more power. However, in addition to the technical specifications, a diesel engine may be able to react more quickly than a gas engine. Gasoline engines don’t provide much torque at low speeds compared to diesel engines. Instead, they operate more effectively at higher rates, providing the same power at higher RPMs.

Advantages of diesel RVs

You will have to replace the rig for your gas engine after 150 to 200 thousand miles. Meanwhile, an RV with a diesel engine keeps the rig functional after 400 thousand miles. More mileage means less fuel cost and consumption and less maintenance and repair.

Torque is another factor in choosing between class A RV gas vs. diesel. Your RV can climb steeper roads and hills with better torque. Gas engines struggle in steep climbs, which means your distance and mileage can be affected, too.

Diesel rigs are also more expensive, but their fuel efficiency offsets their higher fuel price. The range between fill-ups is also noticeably longer compared to gas RVs. As mentioned, diesel RVs also require fewer service appointments, so you save a lot of time and money on repair and maintenance. Moreover, the resale value of gas engines is lesser than diesel motorhomes.

Advantages of gas RVs

Aside from the purchase price, a gas RV’s overall maintenance and operating expense are less expensive. In addition, the cost of spare parts and service work for a gas motorhome is not as complicated as that of diesel RVs. Finding a service location for a gas RV is also more convenient.

With a gas coach, many “DIY” enthusiasts might attempt maintenance tasks, but when you have a diesel coach, you’ll more likely seek a diesel mechanic for your maintenance. DEF, which enables the coach to burn fuel cleaner, is required in all diesel RVs. Gas RVs are not required to have this, which means less cost and hassle when refilling.


There’s an RV for every need depending on several factors and your personal preferences. Fuel economy is a massive factor in your choice, but remember that there’s no absolute perfect choice between a diesel and a gas RV. You need to ensure that the type of RV you’re going for serves its purpose and fulfills your dream of having a mobile home.

About The Author

AutoMotto Staff

We are a team of enthusiasts thriving to provide you with helpful advice on buying everything you may ever need for you vehicle.

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