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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 481-490 of 1,696 reviews
Jul 19, 2014
Bigbear8807
5 out of 5 stars review

BIG....REALLY BIG

This generator arrived in perfect condition. Great packaging and easy to unpack. Assembly of the handle, wheels and rear prop are required. Also the battery hook up and adding oil. Caution (I had to drain some because I rushed the fill and by the time it all settled it was over the fill line) Take your time. There is a replacement air filter and pre-filter as well as a new oil filter provided. Break in period of 30 hours. I have yet to run it but it is really well put together and I will write another review after the break in period. The recommendation is to run the unit for one hour every 30 days. This will keep it charged and ready to go. I would recommend this unit to anyone who wants a whole house generator as it is the largest wattage available in a protable and I don't have propane/lp in my neighborhood. The permanent gas or diesel units of this size are much more expensive.

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Sep 20, 2017
Pat
5 out of 5 stars review

Very dependable unit

I purchased this in 2005 because of the hurricane Wilma, I live in Pompano Bch. FL. It has set in the garage for 12 years . I started it last year to check it and put it back. By the way it started right up no problem. Then along came Irma this year. I had pulled it out and got ready. I lost power Sunday and didn't get it back till the following Saturday. The generator ran flawless and I never shut it off. I kept the neighbors food. It ran my central ac, refrigerator, a wall ac,freezer,4 TVs,4 ceiling fans Water heater, pool pump, lights, microwave, boat lift and never stopped once. The best thing I've purchased. It sat along time but was there when I needed it. Thank you for a great product. My wife has 2 different forms of stage 4 cancer and we really needed this life saver. Wishing you all the best and hope we never need it again but if we do I know it will be there. Sincerely Pat

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Nov 24, 2021
Disappointed
3 out of 5 stars review

Has failed with only 37hrs

Unit purchased 4.5 yrs ago. Ran great till used this yr. Followed all required maintenance and unit stopped during power outage. Shop Arlo has replaces magnetos and now telling me needs new carb. $728 in repairs and still don't know if will run. I can not recommend this $3000+ generator when i am spending 30% cost of unit after only 37hrs. This is ridiculous and Generac has told Arco they won't do anything to help. Very disappointing for a company to treat customers this way.

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Jan 7, 2014
Ron 1934
5 out of 5 stars review

It meets all my requirements

I had been shopping for a generator for 6 months, could not take the buying step. My wife consulted my nephew who said generac was best. Christmas a.m. was I surprised. Took 20 minutes to assemble, fill the oil sump, hit start and it ran like a top. What a relief to have back-up power if needed. excellent warranty, easy to move, happy with my Christmas gift.

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Feb 26, 2021
KaylCrennada
4 out of 5 stars review

Solid unit

strong runner, love that it runs diesel. fuel tank is large enough to keep it running for a VERY long time, especially at lighter loads. my only gripe is the pullstart. i would be willing to bet that Paul Bunyan himself would not be able to pull start this generator. Make sure the battery is charged.

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Nov 26, 2011
K57
5 out of 5 stars review

Best generator I've ever owned!!

Having had 2 other generators over the last 20 years, this one out-performs all the others. It starts so easy, I really do not need the electric start feature. It has plenty of power to operate the house. We seem to have frequent power losses, so having a back-up is a way of life.

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Jul 27, 2017
Lar74
5 out of 5 stars review

This is a great product

This product gives us more for our money. After being without power for 38 hours and losing everything in the refrigerator and freezer for the second time this year we decided to buy a generator and generac was rated as one if the best. Bought one and had an electrician come and install it so from now on we have piece of mind when the power goes out again. Price and the ability to power so many things at once was a no brainer. Thanks for the great product.

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Sep 15, 2018
dmoakl
1 out of 5 stars review

Got it for hurricanes... doesn't work

Bought generator 2 years ago which worked on startup. I drained the gas tank and confidently awaited a time for its use. I am in NC with Hurricane Florence and brought out the generator. After filling the gas tank, checking the oil, charging the battery..... nothing. Will not crank by hand or battery. What a disappointment when it is needed most.

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Dec 23, 2017
Brian82wa
5 out of 5 stars review

Great Product

So I heard Generac has a great reputation for making reliable generators and even though I bought a portable generator, working in the propane business, their are many where I live that are buying the permanent home stand by propane powered generators and they are reliable and even though my is portable but used for home standby too, its what I want. I know it will do the job and keep us comfortable and our keep our food fresh while the power is out. I have yet to get my electrical panel up to code and a transfer switch installed on my house, but when I do I will be able to enjoy the full luxuries of having power without power :) Noise level though its just like a lawn mower or any other gas powered engine, pretty noisy, but again, your inside and its outside and so i can handle the noise.

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Oct 7, 2013
frankandlynn
4 out of 5 stars review

Looks solid

This is for the GP7500E. I can't do an operation review because I just finished setting the unit up and have not used it yet. It was purchased as a backup electrical source for our home. Setup was easier than reviews led me to believe, specifically putting oil in it. You do need a funnel to add oil, and I did use a funnel and hose that I already have, but a funnel with a long neck would work fine. The first unit I brought home was replaced by Tractor Supply after purchase because the spark plug boot was broken. TS was going to replace the unit with another unit in stock but the other unit also had a broken boot. They replaced it with a unit from a different store. Might be a coincidence. I opened the box and checked the boot before I brought this one home. I'm sixty years young but didn't have a problem putting it together, although it is heavy. The only piece missing was one of the little bolts that hold the battery terminals on. The unit looks good, though. I have intentions to fire that puppy up and put a load on it to make sure it puts power out. I don't know if I'll be allowed to do a second review after using it, but that's the plan.

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