Generac GP6500 Portable Generator: An In-Depth Review


If you happen to live in a place with no power, you will be thankful you have the Generac GP6500 portable generator.

This generator comes with lots of power, and it means that you will get what is advertised. The Generac GP6500 offers an eco-friendly operation and can be used indoors and outdoors (although it's better suited to the outdoors).

In this article, we will be reviewing the Generac GP6500 portable generator so that you can get a better understanding of this model. We will also be discussing the features and specifications of this model in detail.


Why You Should Buy The Generac GP6500 Portable Generator

  1. It has a CO sensor; the CO sensor enables it to detect carbon monoxide and produce an alarm when present.
  2. It provides an excellent value for its price; The Generac GP6500 portable generator is excellent. With a running capacity of 6500 watts, it can power most essential items like refrigerators, stoves, and lights.
  3. Powerful; this generator is a workhorse that can power several electronics simultaneously.
  4. It comes with a wheel kit; it has wheels connected to it that make it easy to move about, making it convenient to transfer from one location to another.
  5. Never-flat tires; It has never-flat tires, so you never have to worry about a flat tire.
  6. Durable; It is well known for its durability, performance, and flexibility. The fuel shutoff has a metallic casing instead of plastic, while the generator has a 1-1/4 inch steel construction.

Who Should Buy The Generac GP6500 Portable Generator

It's an excellent unit for;

  • Camping
  • Tailgating
  • Home backup in case of an emergency
  • RVs
  • Construction sites
  • Fishing
  • Hunting trips

What's In The Box

  • Oil (Engine)
  • Wheel kit& Handle
  • 1x Owner’s manual
  • Oil Funnel
  • Generac GP6500 Generator


CO-Sense Technology

This feature will automatically shut down the home's air-conditioning unit should carbon monoxide levels rise to dangerous levels. This kind of innovation sets Generac apart from other generators on the market today.

Power-Rush Advanced Technology

The Generac GP6500 portable generator boasts of Power-Rush Advanced Technology that helps it deliver exceptional performance. The power company uses this technology to provide better fuel efficiency and lower emissions.

Power-Rush Advanced Technology delivers the superior, responsive performance of up to 40% more starting power, so you can count on them to power up and keep the power flowing when you need it most.

Powerful OHV Engine

Generac GP6500 is a feature-rich gasoline-powered generator that can power up to 6500 watts.

It’s easy to use, runs quietly, and will power up almost anything you can throw at it. It is compact and portable, so you can easily store it in your shed or tow it behind your RV.

The Generac GP6500 features a 389cc OHV engine that produces 6,500 watts of continuous power with a peak of 8,125 watts. Its power comes from its 7.9-gallon fuel tank capacity that allows users to run their appliances for up to 10.5 hours in an emergency.

The engine is also affordable to maintain since it can run on regular gasoline and meets CARB and EPA emissions standards.

Large Fuel Tank

Generac GP6500 has a fantastic fuel tank that can store up to 7.9 gallons of gas, considerably more than the GP5500.

Automatic Voltage Regulator

This generator has several safety mechanisms to protect against overloads. It will recognize if it generates too much power and automatically shuts down, which prevents the generator from overloading.

It also includes an overheat detection system that will shut down the generator if it overheats.

Fuel Shutoff

It has a feature that permits you to shut off the fuel supply when you are not using the generator not to leak fuel and waste gas, which is a handy feature. This can help to prevent carbon monoxide poisoning and other potential hazards.

The machine will cut off the fuel flow if it senses no movement after two minutes.

Low Oil Shutdown Feature

One of its best features is the low oil shutdown feature. A low oil level will trigger a shutdown as well and prevent damage.

This allows you to enjoy the uninterrupted services of your generator and not have to worry about its engine shutting down because of lack of lubrication.

Another essential benefit of this feature is that you can extend the life of your engine. The engine will last longer, especially if it is well-maintained.

Fuel Gauge

If you have a power outage and your generator doesn't start. It could be a crisis if you don't know where you stand with fuel.

Generac has updated the features on the generator to include a digital readout that shows how much fuel is left. The easy-to-read fuel gauge shows how much gas you have left.

A digital display shows the exact level of gas left in the tank. This is extremely helpful for people who spend time away from their generators during use. They don't have to worry about running out of gas during a power outage or emergency.

Hour Meter

The generator features an hour meter that allows you to keep track of the number of hours you are using it. This is beneficial as you will work out how often you use it and how long.

This will allow you to calculate your costs and determine whether or not it is worth the investment.

Never Flat Wheels

Never-flat wheels feature a proprietary puncture-resistant rubber compound that protects against impact punctures and sidewall cuts caused by glass, nails, screws, and more.

The never-flat wheel is a high-performance tire and wheel system offering superior handling performance for your camping experience or RV.

Its unique tire tread design provides incredible traction and steering response with no fear of flat tires, even on the roughest terrains.

Fold-Down Handle

The generator comes with a fold-down handle, making it easy to move the machine around. Furthermore, the Generac GP6500’s fold-down handle is of durable construction.

1-1/4 Inch Steel-Tube Cradle

It has a fantastic 1-1/4-inch steel-tube cradle that will hold up to the harshest weather conditions. This model is perfect for power outages and outdoor events such as camping, fishing, hunting trips, or tailgating at an outdoor sporting event.

The generator is well protected against moisture, dust, and other common elements that can cause damage to sensitive electronics.


Peak Wattage: 8125W

Running Wattage:6500W

Voltage: 120V/240VAC

Rated Amps @120/240v: 54.2A/27.1A


Engine Size:389cc OHV

Engine Speed:3600RPM

Fuel Type: Gasoline

Oil: 10W-30/SAE 30

Oil Capacity: 1.06Litres

Oil Lubrication Type: Splash

Tank Capacity: 7.9 Gallons

Runtime @1/2 load: 10.5 hours

Start Type: Recoil Pull start

Start Switch Type: On/Off

Noise Level:76dBA(idle),89dBA (full throttle)

Dimension: 27.2x27x26.5 inches (L, W, H)

Weight: 172lbs

Color: Orange/Black


2x120V, 20A 5-20R GFCI Duplex

1X120/240V,30A L14-30R Twist Lock


It is a wise investment, but there are a few drawbacks you might want to take note of before you buy it.

It's Loud And Noisy

The biggest drawback of this model is that it's deafening. The noise level reaches 89 dBA, which is very loud. You can barely tell they are running even when standing next to them with some generators.

With this one, the loud noise at 23 feet away is enough to cause a noise disturbance.

No Electric Start

One drawback is that its gas engine has no electric start feature, making it difficult for people with physical disabilities to crank up the machine and start it by themselves.

Not Recommended For Sensitive Electronics

Its harmonic distortion is higher than 5% and, therefore, unsuitable for sensitive electronics such as laptops.

Bestseller (lists)

Generac 7683 GP6500 Portable Generator, Orange, Black Patio, Lawn & Garden


Q: Where is the oil plug for draining the oil?

A: The oil plug is situated just slightly below the cap where you check the oil levels

Q: What fuel type does the Generac GP6500 use?

A: The generator only uses unleaded gasoline, but there’s an acceptable 10% use of ethanol. You cannot use E85, gas oil mix, and neither can you modify the engine to run on alternate fuels.

Q: How long is the warranty?

A: There is a one-year warranty for limited parts and a three-year warranty for limited parts only

Q: How large is the Generac GP6500’s fuel tank?

A: The fuel capacity is at 7.9gallons.

Q: What kind of oil is recommended for this generator?

A: The acceptable oil is 10W-30/SAE 30.

Q: Does the Generac GP6500 have an electric start?

A: No, this generator has a recoil pull start.

Final Verdict

Our review of the Generac GP6500 portable generator has provided you with essential information about this product.

Whether you are looking to power your home during a power outage or want to make sure that your home is ready for an emergency, there are many reasons why you might want to consider purchasing this generator.

This is an excellent option for a reliable and affordable generator for outdoor activities. We hope that our in-depth review has helped guide your decision.

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