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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
stars
1,729 ratings1,729 reviews
  1. 5 stars78% (1,354)
  2. 4 stars15% (253)
  3. 3 stars2% (41)
  4. 2 stars1% (20)
  5. 1 star4% (61)

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Showing 181-190 of 1,729 reviews
Feb 2, 2021
Reviewer name: bob
5 out of 5 stars
5 out of 5 stars review

Worked perfectly when we had a power outage on Christmas Day.

We bought this generator because of 3 day power outage we suffered through this past summer. We lost power on Christmas Day and the generator did all we expected and more. It ran 2 refrigerators, stand up freezer, and furnace. We had heat, tv, lights, garage door opener ,coffee maker and everything else we needed. Ran for over 12 hours on a tank of gas. I would recommend this product to anyone, just make sure you have the correct size for you needs.

Review from generac.com
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Sep 26, 2021
Reviewer name: SteveO
5 out of 5 stars
5 out of 5 stars review

Do your research and then buy this one.

I had purchased a Westinghouse Generator and it had all kinds of issues. Before I took it back I did finely get it to run. I don't know who makes there motor but it just sounded very cheep, loose and claney took it back Fast forward I decided after researching several other top notch units I decided on this Generac GP8000e. I was missing things not in the main box but the place I bought it from supplied it all so all was good. I connected the battery, it was charged up, added the oil added mid grade gas, turned on the gas flow to the carb and it started right up and this motor is tight and sounds like a top notch motor. My only regret would be the tool kit that Ace gave me was the cheapest 2 wrench's I think I have ever seen in my life and I don't think they are relevant to anything. i was also missing oil and they gave me Pennzoil and not Generac oil and I heard Generac is the best. Buy it you you wont be disappointed!!!

Review from generac.com
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Nov 22, 2011
Reviewer name: franksam
5 out of 5 stars
5 out of 5 stars review

Outstanding generator and easy to use

After several power outages (ice, wind storms, etc.), I bought this generator after the recommendation of an electrician friend. He has one for his home, and he definitely made a great recommendation. While I was out of town one evening, all the power went out in the neighborhood. My 16-year old daughter was able to pull the generator out of the garage, run extension cords, and connect the refrigerator and two freezers. She had help from a friend, only because she had never used it before. We didn't lose any frozen or refrigerated items. Highly recommend this generator for home use!!!

Review from generac.com
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Mar 11, 2018
Reviewer name: Lerxt
5 out of 5 stars
5 out of 5 stars review

Lots of power

Bought the 6500 in 2015 after losing power for 5 days after a storm. I went with Generac because of the trusted name and reviews. Recently lost power in a winter storm for two days. This baby ran for 48 hours straight through a transfer switch and powered my heat, two refrigerators, three tv's, all my lights no problem! Best $800.00 i ever spent.

Review from generac.com
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Oct 19, 2016
Reviewer name: Rs01121985
5 out of 5 stars
5 out of 5 stars review

Great product

I have had the pleasure of not having to use my generator that I purchased just over a year ago. However for the first time this summer it was finally used but yet again not by me. During a series of severe weather outbreak a friend of mine last power due to downed trees. I offer my generator to him to help keep his basement from flooding. His intention were just to use it for the sump pump. He ended up running not only the pump, but his freezers, refrigerator, air conditioning units and other things. He used it for 40 hours straight and forgot he was even on a generator until he had to fill it after the first 27 hours of run time.

Review from generac.com
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Jan 10, 2014
Reviewer name: ACE
3 out of 5 stars
3 out of 5 stars review

This generator has about average features

I purchased this generator as a back up for my home, and used it only 5 hrs and I haven't found it to be any better or worse to setup or features it offers. It is not as quiet as I had hoped. I have owned or own 6 generators. Size of those units have ranged from 2000w-15,000watts. The gas cap was very difficult to remove to fill with gas. Attaching the battery cables was not easy at all and I have some mechanical ability. Battery location could be better. Oil that comes with the unit does not give a 30W, 10W-30 label and does not indicate the size of the container, 32oz, 24oz, 42oz.. I did enjoy the ease of transporting it from the house where I assembled it to the shed in several inches of snow, where it is stored. That distance is 125 ft. The Generac brand has been around for years so I hope to get 1000 hrs + of use with no mechanical service issues.

Review from generac.com
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Feb 10, 2013
Reviewer name: dsm83
5 out of 5 stars
5 out of 5 stars review

Great Product

This generator fit our needs perfectly. We have a small farm and needed a sizeable unit to power things when power is out with affordability. This unit is large but easy for my wife to move around. It is very easy to operate and quality is excellent.

Review from generac.com
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Dec 24, 2022
Reviewer name: GaryJ
3 out of 5 stars
3 out of 5 stars review

Won't start in very cold weather

I keep my RS8000E in a small garden shed. I run it once a month for 30 minutes. Dec. 2022 was very cold around Christmas. I went out to start the generator just is case we lost power and it wouldn't start. It would turn over, but wouldn't start. I had to wheel it into my work shed and thaw it out, before it would start. I only use premium gas with NO ethanol. I have since put in fuel deicer. I tried it again 2 days later at -10 degrees and same thing, it would not start. I put a little electric heater in my garden shed and after 30 minutes I tried it and it started. 2 days later I tried it again at zero degrees. It took alot of cranking but finally started. The RS in the model name stands for Rapid Start. IMHO not so much.

Review from generac.com
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Apr 15, 2014
Reviewer name: LightsRon
4 out of 5 stars
4 out of 5 stars review

Made in the USA , and it's availability, made this a great choice.

With the ever increasing unpredictability of the weather, I found it necessary to have a generator on hand to ensure comfort and the ability to cook and keep perishable products from spoil. To relax in the relative comfort and glow of my home while I look down the street and see darkness reinforces my belief that purchasing this generac generator was a great idea.

Review from generac.com
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Apr 24, 2025
Reviewer name: ginnamarie0125_806
5 out of 5 stars
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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