Updated: December 22, 2020

Sportsman GEN4000DF Review

by Charles Jasper

Product Overview

The Sportsman Series 4000 generators are a good choice for emergency use as well as providing you with power while on the road in your camper or RV. This dual fuel generator runs efficiently using either propane gas or unleaded gasoline, giving users the option to choose whichever fuel is most convenient and affordable.

It’s a great way to enjoy the clean burning, long-lasting aspects of propane gas without giving up the easy availability of (and familiarity) of unleaded gasoline. Generators with multiple fuel sources also make it more likely that you’ll have a compatible fuel on hand during an emergency.

This Sportsman generator is rated at 3500 watts, with 4000 peak watts. This gives it plenty of power for a variety of versatile uses. Whether you’re a road tripper, homeowner, or contractor, it can serve you well. There are four 120-volt outlets, and an additional 120-volt RV outlet. There’s also a 12 volt DC outlet.

With all of these output options, this single generator can supply all of your power needs while camping or dealing with an unexpected power outage.

At fifty percent load, a full tank of gasoline will power the Sportsman GEN4000DF for up to ten hours. If you opt for propane, a twenty pound LP cylinder can power it for 12 hours. This is the same type of cylinder you probably already use for your gas grill; it’s not included with the generator, but they’re readily available.

The generator does include a five foot propane fuel hose, which is convenient, with an attached regulator. While the generator isn’t silent (what generator is!), it runs relatively quietly at less than 70 Db. It’s an exceptional choice for those who need an affordable and portable power generator that offers multiple fuel choices.

Why Choose a Dual Fuel Generator?

More consumers are opting to purchase a dual fuel (or even a tri fuel!) generator. Is it just the convenience? Is it a more affordable option in the long run? Let’s examine some of the reasons you might want to choose a dual fuel generator over a more traditional single-fuel option.

Fuel Availability

There is a plethora of reasons that one type of fuel might not be available. During emergency situations, it’s not unusual for there to be fuel shortages, leaving you empty-handed and out of power options if you’re dependent on gasoline or propane alone. However, if your generator is suited to using either, you’ll almost always have a backup option available.

The Advantages of Different Fuels

Gasoline and propane also have other attributes which might influence your choice of which to use at a given moment. Propane is more “green,” so if you want to reduce your carbon footprint, it’s a good option. Generators also tend to run more quietly on propane and produce less carbon monoxide.

Gas, of course, has the advantage of being available almost everywhere (unless there is a notable shortage). It’s also less flammable than propane and is more fuel efficient. Generally speaking, it’s also cheaper than propane.

Is it Really Worth the Extra Cost?

A dual fuel generator is usually going to cost a little more than a gasoline only generator with the same features (although you can always find a great deal, too). But the additional cost usually isn’t that much. Whether or not it’s worth it really depends on if a dual fuel generator serves your specific needs well.

The truth is, however, that most use cases can benefit from a generator with flexible fuel options. A power outage can be a problem when it comes to obtaining gasoline, if you don’t have any on hand. Pumping gas requires electricity, and if your local station doesn’t have a backup generator, you could be in trouble.

On the other hand, there’s no electricity required to pick up a tank of propane.

Another issue is storage. While gasoline is readily available, it doesn’t have a long shelf life, while you can store cylinders of liquid propane for an extended period of time, and the storage itself is less hazardous than trying to store large quantities of gasoline.

Finally, fuel costs, depending on the type of fuel, can fluctuate wildly. Simply being able to choose the less expensive fuel at the moment can offset a slightly higher price tag.


The Sportsman GEN4000DF holds 3.6 gallons of gasoline or can accommodate a twenty pound LP cylinder. It has a recoil start, and weighs in around 90 pounds. It’s compact, with a length of 24.5 inches, a width of 17 inches, and a height of 16.5 inches. It comes with a one year limited warranty.


  • Versatile fuel options
  • Portable—under 100 pounds
  • Compact—easy to store and small enough to be unobtrusive while camping or tailgating
  • Exceptional output options provide you with the ability to power a number of devices or appliances at one time


  • May be more expensive than a gasoline-only generator
  • Shorter life expectancy than a simpler, lower maintenance diesel-fueled generator


A dual fuel generator is a wonderful resource to have on hand. For some, it’s a compact, portable, and convenient way to provide electricity to their RV, while tailgating, or when on a camping trip. For others, it provides peace of mind in the event of an emergency power outage.

If you’re in the market for a generator, why not consider a dual fuel model like the Sportsman GEN4000DF? It’s a top notch choice that offers you excellent versatility and top performance at a very reasonable cost.

About the author

Charles Jasper is the owner and main author of Generator Guider. He has a degree Engineering and 20 years experience on using generators on various projects, around the house, and while traveling and camping. He has a passion for everything related to home improvemen and loves to travel on his RV. When he is not working, you might find Jasper working on projects around the house or organizing a camping trip.