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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 131-140 of 1,731 reviews
Dec 29, 2025
Belmore
5 out of 5 stars review

Great quality

The Generac generator that I purchased for our fiber splicing trailer has been great. We haven't had any issues thus far. It is easy to start and starts quickly even in cold weather. It is very quite compared to most others and the gas usage is very minimal. We are more than pleased with our Generac!

Review from generac.com
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Nov 22, 2025
hammadi_8781
5 out of 5 stars review

Great generator

[This review was collected as part of a promotion.] I recently got this Generac Power Systems GP5500 Single Fuel 50 ST generator and am very pleased with it so far. It is very easy to operate, especially with turning it on. It provides very reliable power throughout the time that I had it on. It also is easy to store as it's not too big.

Review from influenster.com
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Oct 31, 2025
tarynreviewsit_6314
5 out of 5 stars review

Perfect peace of mind for backup power

[This review was collected as part of a promotion.] As we head into the winter months, I'm so grateful to have the Generac Power Systems GP5500 Single Fuel Portable Generator. Power outages are pretty common where I live, and having this gives me real peace of mind knowing I can keep our outdoor refrigerator running and save our perishables if we lose power. The generator itself is quite large, but that's to be expected given its power and capacity — and setup was surprisingly easy with minimal assembly required right out of the box. It feels solid, well-built, and dependable. While I mainly use it as a backup for power loss, it's strong enough to handle outdoor work or hobby use as well. It's one of those purchases you hope you don't need often, but you're so thankful to have when you do.

Review from influenster.com
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Oct 26, 2025
daniela245_2681
5 out of 5 stars review

Easy to set up and use

[This review was collected as part of a promotion.] What a fantastic product! It is so easy to set up and use. The noise level seems to be slightly better than other generator brands. The only con that I have is that it is hard to fill it with oil with the electric start battery and wires at the oil fill location.

Review from influenster.com
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Dec 9, 2025
connoisseurofsorts_1640
5 out of 5 stars review

Better safe than sorry!

[This review was collected as part of a promotion.] This generac generator is perfect for our needs and I'm glad we have it! Fortunately, we have not had to run it for an extended period of time since receiving; however, test runs have been successful and it seems like it will work efficiently and as expected for when we need it to run for hours. The generator came on a pallet and was packaged well. It is HEAVY without the wheels and handles. About 170 lbs I believe. So you'll want at least two people to lift (or just rip the box open like I did). Instructions are clear and assembly was pretty quick - about 20 minutes or so. It's definitely easier to assemble if you have more than one person. Once the handles and wheels are attached, it is easy to move around. While I'd recommend moving it with both hands, I was able to push it with one arm and record with the other and I'm not that strong. The generator itself feels very heavy duty and high quality. It seems like it'll last a long time. It's easy to start up and not excessively loud (it's a generator after all, so there is some sound to it running). I like that the wheels don't need air so they won't go flat. I also like that there are several outlets with attached outlet covers for protection. Lastly, as someone who is very anxious I greatly appreciate that this generator has onboard carbon monoxide monitoring. Overall, I'm incredibly satisfied with this generator and I'm happy we're prepared for the future!

Review from influenster.com
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Oct 23, 2017
Sil
5 out of 5 stars review

Verified Purchase

I like the electric starter !!!

Good value for your money and a strong working generator. Working in Puerto Rico after Maria hit the whole Island.

Review from generac.com
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Jan 25, 2017
cbrackob
4 out of 5 stars review

Verified Purchase

Overall great generator.Very pleased.

Little louder than I hoped but plenty of power to tackle any job I throw at it.Easy start.Looks great too.

Review from generac.com
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Jan 25, 2017
PrepareTX
4 out of 5 stars review

Verified Purchase

Bought for Hurricane Season

I bought this unit ahead of time to be prepared for Hurricane season. I haven't had to use it yet. I just run it about one a month to keep it up.

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

Verified Purchase

Portable generator

Only used once so far but very pleased with the generator. Solid tires and fold down tires are a plus. Fairly quiet and smooth running.

Review from generac.com
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Jan 28, 2017
Myoder
4 out of 5 stars review

Verified Purchase

Ease of use

I realy like the ease of starting generater,also the apperance. What i would change would be add a remote start.

Review from generac.com
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