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Articles Generators Products Review

Generac 5940 GP6500 – Detailed Guide

The Generac GP 5940 6500 portable heavy-duty generator is made to power all the necessary devices at home so that in case of power outages, even your air conditioner and refrigerator don’t get stopped because of a power shortage.

Generac compromised on noise to provide heavy-duty functionality for running your appliances without any issues. 

Another generator might be able to operate your standard devices but still unable to use the fridge and AC because of which all the stuff can get rotten.

Generac 5940 GP6500

Generac is Always in search to provide innovative models and designs for its users in every situation to benefit from getting rid of power outage issues.

Generac 5940 GP6500 6500 Review


  • Weight Of Generator: 184 Pounds
  • Unit Dimensions: 28.75 x 26.75 x 25 inches
  • Peak Watts: 8000watts 
  • Running Watts: 6500watts 
  • Type Of Fuel: Gasoline  
  • Engine: 389cc OHV engine 
  • Fuel Tank Capacity: 7.2 gallon
  • Total Runtime: 10 hours
  • Noise Level: 89-98dB
  • Warranty Period: 03 years

Design And Build Quality:

The heavy-duty efficient Generac 5940 GP6500 6500 generator has a built-in 389 CC high-quality OHV engine that provides sufficient power to keep your devices running in power outage situations.

Because of its power supply, the unit best suits for powering whole-house appliances and site instruments without letting your work get paused. 

They built a high-quality metal frame/ hard steel-tube cradle surrounding the main unit to provide the generator’s stability, strength, and aesthetic appearance.

Its ergonomically designed stylish handle makes it easy to move it to the desired size. Because of the heavy metal built-in, an engine may be a bit heavy, weighing about 184 lbs.

Outlets And Essentials:

Despite other features, a generator is considered best if it comes with multi-functional outlets that easily connect various devices and gadgets with ease and efficiency.

Generac had worked on their generators and this time came up with triple outlets and circuit breakers residing on the generator.

You may get a single 120/ 240 twist-lock outlet and a dual 120/240 duplex outlet of 20 A. You may not get an RV-ready switch or USB ports with this generator. 

The triple outlet is rubber covered to keep them safe from getting worn out because of environmental stress, dust, and debris. 

What makes Generac 6500 unique is that you may get an hour meter that constantly alerts you about the maintenance of your generator.

One essential functionality this unit offers is a low oil shutdown feature that enables the user to get worry-free in case the gas is less in the tank. What is it means?

It simply means that if the gas is less in the tank, the generator will automatically shut off and keep the unit engine and device safe.

Fuel Tank, Fuel Options, Runtime:

If you require a generator for your whole house’s power, then Generac 6500 can be the best option. With a 6.5-gallon gasoline tank, you can run the device for about ten hours with a 50% load.

If the %load is decreased, the runtime can increase by 15 to 20 hours, but if the load is increased to 75%, the generator with a full tank will work for 5 or 6 hours. Your usage will define your run time. 

Generac 5940 GP6500 6500 again comes into the spotlight for additional unique functionalities because the fuel tank provides a gauge that shows the fuel level left in your tank, which is not seen in other top brands.

Load Capacity For Different Appliances:

Generac 6500 are heavy-duty generators with high wattage necessary for powering your air conditioner, refrigerator, and other heavy-duty devices.

With an 8000 starting watt and 6500 running Watts requirement, it becomes a sophisticated unit for powering all appliances and frees you from fearing overloading issues.

Be careful; it can run devices with loading capacities compatible with Generac 5940 GP6500 6500. Here are the machines, including wattages; you can go through them to know which appliances require how much power.

You can run your appliances like:

  • Refrigerators (300-800 watts)
  • Air Conditioners (1400 watts)
  • Electric Dryer (1800-5000)
  • TV (100 watts)
  • Electric water heater (1000 watts)
  • Lighting ( 200 watts)
  • Microwave(750-1100 watts)
  • Phone (3 watts)
  • Coffee maker (900 watts)
  • Radio (10 watts)
  • Computer (120 watts / 30 watts)
  • Fans (55 watts)
  • Monitor (150 watts)
  • Laptop (50 watts)
  • PC gaming (300 watts)


Generac 5940 GP6500 6500 is a heavy-duty generator with a large size that makes them heavy units, but thanks to the large never-flat wheels and unique handle making, it is portable to any site you desire.

The feature may not be present in all generators, so Generac is lucky to have it to sophisticate its users. If you want to keep your generator stands stable, use the two standing at the front, which keeps the generator standing right on the ground.

Maintenance & Warranty:

Keep your generator maintained by overtime oiling and cleaning, and go for a fresh fuel supply. It depends on your choice, but keep it maintained to make it live long with durable action.

Generac offers 02 years warranty for consumers, while the 01-year guarantee is for commercial purposes. In case of any problem, contact their customer support, and you won’t regret it.

Impact On Environment:

It’s unclear whether Generac GP6500 is EPA or CARB complaint. Still, we suggest opting for the generator in an open area because there are chances that they release toxic fumes containing carbon monoxide when accumulated, which can lead to deadly conditions. 

They are noisy devices because of their large size and high power generation; the engine is more prone to noise production. Even if you are far from the generator, you can still hear its din, leading to pollution.

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Reason To Buy
  • Heavy duty
  • High performance
  • Low fuel shutdown feature
  • Hour meter
Reason To Don’t Buy
  • No EPA and CARB compliant
  • Noise pollution


If something can power heavy-duty devices, we think ‘sit is the best option to opt for. Generac G6500 will power your appliances without any issues, but it keeps your safety. But sadly, it has no eco-friendly nature to your devices without any problems, but it’s not eco-friendly. Still, it satisfies human needs while prioritizing power outage conditions.

See More:

Champion Power Equipment 100554 Generator Review
Champion Power Equipment 76533 4750/3800 Generator

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About the author

Anthony Miller

Hello Guys! I am Anthony Miller, a high dynamo, communicative author, and editor of the Renewable Cop, always providing amazing, engaging, informative, unique, highly researched, and verified content based on all sorts of generators. Read more.

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