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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 71-80 of 1,696 reviews
Sep 10, 2025
CMelectric
5 out of 5 stars review

Bad Features I am an Electrical Contractor

I had Purchased This Unit From CED in Hudson on May 14th 2025. Brought it home Installed proper gas and oil Tried to start it it started for a few seconds so I called Generac They told me to take it to be serviced at MacDaddy's Small engine repair in Land O lakes. They still have it there, It had faulty Parts. Your Company would not replace it.

Review from generac.com
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Jun 19, 2025
Anonymous
5 out of 5 stars review

Electric start, Tri Fuel

[This review was collected as part of a promotion.] Generac GP9500E is a portable generator capable of using gasoline, liquid propane or natural gas (Tri-fuel). With electric start and wheeled cart, this generator is easy for anyone to use. 9.5 hour run time on gasoline, (7.5 gal) 4.5 hours on a 20lb propane tank (when used at 50% power). Used a CO2 sensor to automatically stop and alert user to dangerous levels. Included are engine oil, battery, and 4 foot LP hose with regulator. Weighs in at 219 lbs and includes a 3 year limited warranty. Has (covered) 2 standard 120v 20 amp plug receptacles, one 120/240v 30 amp twist lock receptacles, and one 120v/240v 50 amp heavy duty outlet. HomeLink manual transfer compatible. This generator replaced our old one that was not push start- what a pain in the butt. This one is easy enough for anyone to switch on- not just strong people. Smooth running and much quieter that our previous portable. The ability to run three different fuel sources is just fantastic. MADE IN THE USA Can’t go wrong with Generac brand generators. Provides peace of mind that you can preserve freezer and refrigerator contents when the power goes out or for RV use. Very happy with this generator, highly recommended.

Review from influenster.com
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Jun 19, 2025
gavean_4975
5 out of 5 stars review

Great!!

[This review was collected as part of a promotion.] Compact, reliable power. This GP9500E from Generac has a small footprint, yet packs some serious power. This is capable of running on gasoline, LP (propane) or natural gas. Rated at 12500 starting watts and 9500 running watts when running on gasoline. The 500cc OHV (over head valve) engine features electric start with the included battery, as well as the old school pull start just in case the battery or something fails. It holds 7.5 gallons of gasoline and will run 9.5 hours at 50%. There is an included 4 foot long LP adapter hose and a 20lb tank will run 4.5 hours under the same conditions. Propane will lower the output slightly at 11250 starting and 8550 running watts. If you run natural gas it lowers it to 9000 and 7000. The included handle and wheel kit makes it super easy to move it around when needed and the handle folds down to store neatly. There are many great features built in, such as covered outlets for added protection when being used in the elements, CO sense technology that will shut the machine down if CO levels get too high and a low oil l cel shutdown that will stop the engine if it detects low oil to save the engine from damage. It is also compatible with HomeLink manual transfer switch kit to help power your home in the event of a power outage. This is especially helpful at our house as we have a well and when the power goes out, there is no water. So this adds peace of mind in those situations. Setup was simple with the included directions, which are also printed on the top flap of the box. Everything you need aside from a couple of very basic tools is included as well. The front panel contains an hour meter to keep track of how much use the machine has had. When running this is on the quiet side for a machine of this size. I am extremely pleased with this generator. From the ease of setup to the ease of use this generator is awesome.

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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Jul 15, 2025
JLMc
5 out of 5 stars review

My Generator

This generator is a beast, I haven’t had a power outage yet but I ran it for 12 hours on a tank of gas just to try it and it didn’t miss a beat, I could run anything in the house with no problems, it’s a little expensive but anything that’s worth having usually is especially in the winter months in Michigan and I am so glad I have a backup plan 😊

Review from generac.com
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Jul 12, 2025
brianh51_8915
5 out of 5 stars review

First impression, this is heavy and more than I ne

[This review was collected as part of a promotion.] The generac 9500 is nice. However it is heavy, like 265 lbs. I thought I would be able to use it more but not a lot of opportunity at this point. It stays tucked in the garage. It does make some noise but not as load as my old air compressor. Overall I think it is a good product I just don’t have a lot of use for it. I requested it to see if this app would sent me something that big. Knowing Influenster will I will be more targeted in the future. Initial impressions on the 9500 are great. That being said I am not a hard use.

Review from influenster.com
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Jun 7, 2025
angien114_2042
5 out of 5 stars review

Great in an emergency

[This review was collected as part of a promotion.] The generac portable generator has come in real handy during our spring storms. We've had bad storm blow through our area this year and power goes out easily. My husband hooked up the generac to our fridge and a few other household things and it may our time without power so much easier. It is not very loud and it's easily to move around. When our power came back on we brought it to our sons house so they could run things Everyone's benefits from this.

Review from influenster.com
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Sep 10, 2025
VKA2
1 out of 5 stars review

Poor Warranty Assistance

Purchased this portable generator, had a problem with it after 15 min. of running.. Called for assistance and No One would come to my house to repair it. They only would come if it was a standby generator. I like Generac Products but my was 450 pounds and I could not service it myself. Plus it was under warranty.

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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Jul 14, 2025
home1234
5 out of 5 stars review

Recommend the GP8000E to power a home

The GP8000E works well for running our whole house. We had an outage for 2 days and were able to run our whole house without any issues. We have a well water pump, AC, refrigerator, freezer, lights, etc. We did not encounter any issues. The portability works well for moving and storage.

Review from generac.com
Helpful?698EZRGTDSV513631905214