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Customer reviews for Generac GP6500 6,500W/8,125W Generator + CO-Sense for
Generac GP6500 6,500W/8,125W Generator + CO-Sense
4.6 out of 5 stars
stars1,734 ratings1,731 reviews
  1. 5 stars78% (1,356)
  2. 4 stars15% (260)
  3. 3 stars2% (41)
  4. 2 stars1% (19)
  5. 1 star3% (58)
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Showing 1-10 of 1,731 reviews
Nov 24, 2024
BMUR
5 out of 5 stars review

Super impressed

Was part of the "Bomb Cyclone" that hit the PNW on 11/19/24 and lost all power. After two days, we decided to invest in a generator knowing that this could happen again. The set-up was easy, the controls were well labeled, the starting process was explained with help from stickers located above the fuel line and choke lever (but make sure to read the manual first). The unit started with ease and ran for 4 days straight as we were out 6 days total. I was able to plug in the chest freezer, mini fridge, floor heater, lights, cable with TV, recliners, computer, and was also able to charge phones and flashlight batteries. This is my first generator ever and now wondering why we didn't purchase sooner. Would have made those first two days way more tolerabe! As a suggestion, even though the unit comes with a 20' heavy duty cord with 3-plug-in capabilities, I stronly suggest having a 50' or 100' equivalent heavy gauge (12g minimum suggested) to run from the unit into the house. If there was one thing I would try and change, it would be the noise output which I know accompanies all generators and just something you and the neighbors will have to deal with unless you devise something that dappens the noise without hindering the exhaust in any way. Overall, I'm super impressed and would recommend to family and friends without hesitation.

Review from generac.com
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Oct 7, 2021
Gertie
5 out of 5 stars review

Verified Purchase

Generac Generator

Generator came on a wood pallet (free shipping). Made it super easy to put the wheels on. Comes with everything you need to start and run. Put the oil in, two gallons of treated gas, and generator started on second pull. Was surprised at how quiet it runs. Haven't had a power outage yet, but I'm confident this will handle all my needs. Made in USA!

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Jun 2, 2017
YumaAlan
5 out of 5 stars review

Verified Purchase

Solid Generator

Third generator I have tried, this one is a winner....hold 5th wheel and enough for all my power tools for construction project on land without electric. Always starts like a champ..runs really quiet with good run time....only thing I would like to see is an adapter to permit larger gas tank for longer run time..........

Review from generac.com
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Jun 2, 2017
Nezzy
5 out of 5 stars review

Verified Purchase

Generac GP7500E

I have not had a chance to run this new generator for any extended period of time, but I can tell you do not buy a generator under 5000 watts if you intend to use many appliances. My 3/4 horse sump pump alone takes over 3000 watts to initiate. For the money you cannot beat this generator mine started right up after easy assembly and I have ran it a few times for 10 minutes for my personal beliefs for break in.

Review from generac.com
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Aug 7, 2025
colleenmdougherty_8465
5 out of 5 stars review

A Life-Saver!!!

[This review was collected as part of a promotion.] We've lost power four times this summer due to intense Philly storms, and I can honestly say the Generac Tri-Fuel Portable Generator 50ST came in clutch every single time. Setup was straightforward, and the tri-fuel option (gasoline, propane, or natural gas) gave us flexibility depending on what we had on hand. We mostly ran it on propane, and it powered everything we needed — fridge, lights, fans, and even the Wi-Fi — without breaking a sweat. The runtime is solid, and the peace of mind it gave us during outages was worth every penny. It's not the lightest piece of equipment, but it's built to last and easy to move with the wheels. Noise level is totally manageable for a unit this powerful. If you live in an area prone to storms or unreliable power, this generator is an absolute game-changer. After this summer, I wouldn't be without it.

Review from influenster.com
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Aug 28, 2025
pom_mom_7543
5 out of 5 stars review

This generator is a beast

[This review was collected as part of a promotion.] The Generac GP9500E Tri-Fuel is a fortress of reliable portable power. It stands out for its substantial output, multi-fuel adaptability, and safety focus. While it leans into simplicity over tech-savvy features and isn't the lightest or most efficient, it packs an outstanding value for serious backup power needs.

Review from influenster.com
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Jun 1, 2017
Mike
4 out of 5 stars review

Verified Purchase

Easy start

Turned it on and no electric powe on all the outlet. Pressed the circuit breaker still no power. Got a pencil a pushed harder and got power. Those buttons have to be pushed in deeper than I would have expected . Haven't had the opportunity to use it yet. We have been lucky, haven't lost power yet.

Review from generac.com
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Oct 2, 2025
outlawpool
1 out of 5 stars review

junk

its a piece of junk right out of the box..they keep giving me the run the around.dont buy a generac..has 9.2 hours on it and wont start.do not buy a generac of any kind this is 2 generators now.both are junk

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Nov 27, 2024
Elite Foam Solutions LLC
1 out of 5 stars review

Bad Generator

I started a new spray foaming business. Spray ez put this generator in my trailer with the package. I used this generator 2 times and its fired. TERRIBLE GENERATOR Trying to find a warranty dealer is extremely difficult.

Review from generac.com
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Sep 10, 2025
JH25
1 out of 5 stars review

Terrible services for defective products

Unit was defected. No output power. None of authorized shop recommend can fix it. Could not refund to due to crazy FleetFarm policy. Running around for 2 weeks trying to get it fix. Loss $20 to drain gas not cover by warranty. Terrible experience. Don't recommend it.

Review from generac.com
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