Fuel vs. Diesel Motorhome: Which is the Greatest Selection for You?

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By Car Brand Experts





Motorhome patrons typically ask, “Which is healthier for me: A gasoline or diesel Class A motorhome?” There is no such thing as a proper reply, apart from “It relies upon.”

A Newmar Bay Star motorhome towing a Jeep dinghy vehicle. Photo: Bruce W. Smith.

In truth, it is dependent upon a number of components:

  • What’s your finances?
  • How typically will you be utilizing the coach?
  • Full-time or part-time?
  • Will you be towing a dinghy or trailer?  
  • Are your outings going to incorporate driving within the mountains?
  • Do you want the most recent in expertise?
  • Is luxurious a precedence?
  • How vital is experience and dealing with?

Listed below are just a few extra concerns that ought to aid you determine if a gasoline or diesel motorhome is for you.

Value

Diesel motorhomes have a better worth level than a gas-powered mannequin of comparable dimension. It’s common for an entry-level diesel Class A motorhome to price $50,000–$150,000 greater than a luxurious gas-powered Class A motorhome of comparable dimension and floorplan.

Diesel motorhomes are typically higher appointed with extra commonplace options than a gasoline model. For instance a 2024 Newmar Kountry Star diesel pusher prices $142,000 greater than a gas-powered 2024 Newmar Bay Star (MSRP $237,720). There’s additionally a $125,276 distinction in base worth between the diesel Winnebago Encourage ($379,419) and gasoline Adventurer ($254,143).

Class A Fuel Value Vary

  • Entry Degree: $115,000-$145,000
  • Mid-Degree: $145,000-$185,000
  • Luxurious-Degree: $195,000-$250,000

Class A Diesel Value Vary

  • Entry Degree: $195,000-$300,000
  • Mid-Degree: $325,000-$450,000
  • Luxurious Degree: $450,000-$2,500,000+

Depreciation on a Fuel or Diesel Motorhome

An important facet to think about when of shopping for a gasoline or diesel motorhome is depreciation. The second the wheels of a brand new RV hit the pavement, the standard worth drops by about 20 p.c. That’s based on knowledge collected by J.D. Energy, RV BlueBooks, and comparable automobile analysis facilities. 

By the point an RV is 4 years previous, the depreciation is round 30 p.c. A five-year-old gasoline or diesel motorhome could have misplaced about 40 p.c of its authentic buy worth. After that, the drop in worth flattens out over the subsequent 6–10 years.

These values are primarily based extra on how previous the RV is fairly than what number of miles it’s accrued. That’s as a result of most motorhomes “die” as a consequence of failures of the physique fairly than the drivetrain.

The perfect recommendation is to buy round for fashions which might be 4 to 6 years previous with low mileage. Used motorhomes on this section are normally very properly maintained and provide a great worth for the greenback. 

Journey High quality on a Fuel or Diesel Motorhome

Journey and dealing with play a giant position if you’re shopping for a gasoline or diesel motorhome. Nothing is extra annoying than a tough experience. Right this moment’s gas-powered motorhomes are normally constructed on the Ford F-53 chassis, which comes with the 7.3-liter V-8 and a six-speed computerized. It’s a primary leaf-spring chassis constructed completely for motorhomes. The experience and dealing with relies on what upgrades the RV producer has accomplished to mitigate the problems that leaf springs are likely to exhibit on this software.

Diesel-pushers, however, are constructed on fully totally different chassis by a handful of producers, notably Freightliner and Spartan. Air suspensions, unbiased entrance suspensions, steering help, a extra sturdy body, passive steering tag axles, air braking programs and bigger gasoline tanks are just some of the options present in lots of right now’s diesel-powered motorhomes.

These diesel chassis ship much better experience and dealing with than discovered below a typical gas-powered motorhome. Pushers, due to the engine location, are additionally quieter on the highway and diesels can have twice the owing capability than that of a gasoline-powered motorhome. 

If prolonged journey, cross-country touring, or full-time RVing is the plan for purchasing a motorhome, then specializing in a diesel-pusher, even an entry-level mannequin, is very beneficial.

Likewise, if you’re planning on towing a dinghy (automotive, SUV, pickup, toy trailer) cross-country, or within the mountains, a diesel-powered motorhome is your best option as a result of they will have double the towing capability of a gasoline counterpart.

Gasoline Economic system on a Fuel or Diesel Motorhome

In keeping with the Division of Vitality, diesel motorhomes get about 15 pecent higher gasoline economic system than a comparable gas-powered motorhome. That’s as a result of diesel has a few 15 p.c higher thermal vitality per gallon than gasoline. Most consultants say gas-powered motorhomes get between 6–10 mpg whereas a diesel coach of comparable dimension will get 8-14 mpg.

Diesel gasoline is dearer than gasoline, with the present nationwide common, based on the February 2024 gasoline replace from the U.S. Vitality Info Administration (EIA), is Common gasoline price $3.14 per gallon whereas on-highway diesel was $3.97 per gallon.

Longevity on a Fuel or Diesel Motorhome

The life expectancy of a motorhome is extra depending on the construct high quality and upkeep of the “field” on prime of the chassis than it’s of the engine and transmission. A well-maintained gasoline or diesel motorhome saved out of the climate can have a great service lifetime of round 20 years.

As for miles on the unit, a gas-powered motorhome engine and transmission which were serviced based on the producers’ suggestions ought to have a life between 150,000–200,000 miles. A diesel that’s had the identical care will sometimes have a lifespan between 300,000–500,000 miles.

The rationale motorhome diesel engines final as a lot as three-times so long as a comparable gasoline engine is as a result of they’re constructed extra stoutly. Plus, diesel gasoline is much less acidic than gasoline, which helps scale back put on. The longer life expectancy of diesel motorhomes is only one motive they’ve a better resale worth than these powered by gasoline.

Engine Upkeep Time & Miles

Upkeep is a vital issue within the life expectancy and worth of any gasoline or diesel motorhome. Service of each engine sorts is dependent upon a number of components. However it’s all basically primarily based on time (months) and miles.

For instance, within the 2022 Newmar Tremendous Star and Ventana diesel pusher proprietor’s manuals say to vary engine oil each three months or 7,500 miles, whichever comes first. A minimum of yearly substitute the gasoline filter and gasoline/water separator, and each 4 years substitute each the engine coolant and transmission fluid and filter.

In the meantime, Cummins’ Fast Reference Information for motorhomes says each six months or 15,000 miles for the ISB5.9 and ISB6.7s constructed earlier than 2021. The 2021-newer ISB6.7L is eighteen months or each 20,000 miles. The Cummins X15 oil and filter change is at 12 months or 20,000 miles for 2021-newer fashions and each six months or 20,000 miles for these constructed previous to 2017.

Ford’s huge Godzilla gasoline V-8 has a service interval of 10,000 miles, whereas the previous V-10 oil/filter service was at 7,000-mile intervals. That’s why it’s vital to learn the motorhome’s proprietor’s handbook for the engine, then decide which service interval is greatest suited to your kind of use.

Value of Possession

Fuel or diesel motorhomes, like all automobiles, have a built-in cost-of-ownership issue. The extra you drive it, the extra it prices for upkeep. It’s common for a motorhome proprietor to spend between $1,000–$2,000 a yr for primary engine companies.

A primary diesel engine service is significantly dearer than that of the Ford 7.3-liter V-8. That’s as a result of diesels have gasoline and water separator filters, that by themselves, price upwards of $500. That’s not even counting the price of engine oil itself. And diesels require loads of oil. Whereas Ford’s V-8 takes about two gallons, a pusher with a Cummins 6.7-liter requires 12 quarts. One operating a Cummins X15 wants 44 quarts (11 gallons). Oil prices add up through the years!

The excellent news is right now’s motorhome diesel engines just like the Cummins don’t want an oil and filter change as typically as a gasoline engine. The latest Cummins, for instance, have a service interval of 20,000-miles or yearly.  The latest Ford gasoline engines utilized in motorhomes have a beneficial  service each 10,000 miles. (Older V-10 gasoline fashions require oil/filter adjustments round 7,000 miles.)

Whether or not you select a gasoline or diesel motorhome, and the way blissful you’re with that alternative, relies upon so much on how diligent you’re on maintaining it serviced and maintained inside and outside.

The Verdict

So, which is healthier for you? A gasoline or diesel Class A motorhome? Are the advantages of a diesel-pusher price the additional time, effort, and cash? Or, are the range, price, and familiarity of a gasser extra your model? Because you’ll be residing in it, and it’s your checkbook, that’s so that you can determine.






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