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Customer reviews for Generac 8917 GP18000EFI 18,000-Watt Gas-Powered Electric-Start Portable Generator for
Generac 8917 GP18000EFI 18,000-Watt Gas-Powered Electric-Start Portable Generator
4.6 out of 5 stars
stars1,696 ratings1,696 reviews
  1. 5 stars79% (1,332)
  2. 4 stars14% (245)
  3. 3 stars2% (40)
  4. 2 stars1% (20)
  5. 1 star3% (59)

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Showing 141-150 of 1,696 reviews
Apr 28, 2025
joylalaloy_9829
5 out of 5 stars review

Powerful, Flexible, and Reliable Backup for Hurric

[This review was collected as part of a promotion.] I’m really impressed with the Generac GP9500E Tri Fuel Generator! It’s very well-built and feels super sturdy. It is quite heavy, though, so I definitely recommend having two people to lift it if needed. Once you get the wheels installed, it becomes much easier to move around. The setup was pretty straightforward, there aren’t too many pieces, and I was actually able to put it together by myself, though it would go faster with two people. I’m especially glad to have this generator since I live in Florida, where hurricane season can easily knock out the power. Last year, we couldn’t use our submersible water pump to prevent flooding during a storm because we lost power, so having this generator as a backup gives me so much more peace of mind. I also love that it runs on gasoline, propane, or natural gas, just with the turn of a dial. It’s super flexible and reliable, and I love that the COsense technology adds extra safety by automatically shutting down the generator if dangerous carbon monoxide levels are detected. Overall, I’m really happy with this unit and feel much more prepared for the next hurricane season!

Review from influenster.com
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May 20, 2025
Mac3
4 out of 5 stars review

All good! Love the dual fuel. I do wonder if I can plumb the fuel from our home propane tank? or possibly use my 100# tank vs only a 20 or 30# ? It's perfect as a home backup, as is, just thinking of a fixed backup rather than having to run sep tanks & wire.

Review from generac.com
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Apr 19, 2025
Ernie
4 out of 5 stars review

Great overall unit but…

We purchased our generator just before hurricane Helene came through as our older generator of 20 years stopped working. The new unit worked fine for the week we were without power but started dripping some oil the last two days. After speaking to Generac and then taking it to an authorized repair dealer we were without the unit for almost six months due to no part available. Thankfully we didn’t need the unit as we never lost power during that time but that is way too long to wait for a repair.

Review from generac.com
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Apr 22, 2025
ashleyw1313_7204
5 out of 5 stars review

Very nice and works so well

[This review was collected as part of a promotion.] The photo shows it on its side because the wheels were being put on. However the wheels make it much easier to move around and the handle is even a better touch. The noise is not as loud as some I have heard and it was easy to start with the pull start. We plan to connect it to the house so it will run a few major appliances like the deep freezer and fridge.

Review from influenster.com
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Feb 11, 2025
Jimm
1 out of 5 stars review

Batteries ship dead and no replacement available

Unit came with a dead battery and defective. Tried charging it with the charger they sent with it and it did absolutely nothing. Put in on a real battery charger and that didn't work. Generac said to put this generator in the trunk of my car and take it to a dealer. I certainly can't do that; it's too heavy and it won't fit. I called an authorized Generac dealer and she said most Generacs come with dead batteries. Even her replacement battery is frequently DEAD. This is the last time I purchase anything from Generac as their product quality is much lower than in years past. NEVER get a generator that can't be started manually with no battery. I will try a Dewalt or Kohler product next time.

Review from generac.com
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Apr 18, 2025
MK1989
5 out of 5 stars review

General saved us during Helene's aftermath

I bought this in the aftermath of Helene devastating western North Carolina. We needed a larger generator that could operate several without needing to unplug items so as not to overload it. My Generac GP 6500 had no problems carrying a much larger load as we were without power 11 days. I was able to use a medical CPAP at night without worry as the refrigerators and freezers and lights were able to work with it and also charge phones and other necessities while operating as close to normal during that time. I've used it during several power outages since. A great generator to have.

Review from generac.com
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Apr 18, 2025
Jason R1
5 out of 5 stars review

Awesome generator!!!

I bought 2 of these after Hurricane Helene. One for me and one for my mom. My moms house used theirs and was plenty of power to run almost everything except the HVAC. Assembly was straight forward and started right up. Only used it for about 10hrs before her power came back. She was out for a total of 6 days. I never started mine because my power came back while I was picking them up lol.

Review from generac.com
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Apr 18, 2025
OLDJEEP813
2 out of 5 stars review

For 50 hours then nothing

Bought this unit to get us through the storm last year. It did it's job well for the first 50 hours, then it quite running. It won't start and run. Pretty sure it's the electronics, the CO2 sensor. Saw a U tube video of the exact model doing the exact thing. Bad unnecessary CO2 sensor. So it sits there broken waiting for me to find a shop, time, and help to load it.

Review from generac.com
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Apr 22, 2025
elizabethm170_5690
5 out of 5 stars review

Generac generator

[This review was collected as part of a promotion.] This Generac generator is a tri fuel generator i like that you can use gasoline or propane or natural gas it also has a CO sensor that shuts off the generator if it detects carbon monoxide you can start it with a push button or a pull rope it is not very noisy it is easy to assemble and easily rolls where ever you need it

Review from influenster.com
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Apr 24, 2025
ginnamarie0125_806
5 out of 5 stars review

Definitely a must have!!

[This review was collected as part of a promotion.] The Generac Power Systems GP9500E Tri-Fuel Portable Generator is a versatile and powerful solution for both home and job site needs. This generator stands out with its tri-fuel capability, allowing it to run on gasoline, propane, or natural gas, providing flexibility and convenience in various situations. It is ideal for powering essential appliances during outages or running multiple tools simultaneously on a worksite. My husband took it out of the box and had it running within minutes! The electric start feature ensures easy operation, while its sturdy design and durable wheels make it highly portable. The GP9500E is also equipped with advanced safety features, including a low-oil shutdown and overload protection, ensuring reliable and safe performance. Overall, the Generac GP9500E is a reliable, efficient, and my husband absolutely loves this!

Review from influenster.com
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