Costco Gas

    Gas Stations
    Closed6:00 AM - 9:30 PM

    Photos & videos

    Photo of Costco Gas - Mount Prospect, IL, US. Biggest backup ever at this location, before the coldest temps of the winter.
    Photo of Costco Gas - Mount Prospect, IL, US. Long lines!
    Photo of Costco Gas - Mount Prospect, IL, US. Yikes, another fill-up PR.  I feel sorry for anyone who drives more than 4K mpy, has a gas guzzler, or plain just can't afford it!
    Photo of Costco Gas - Mount Prospect, IL, US. Pretty busy today!  Snowstorm scare maybe.
    Photo of Costco Gas - Mount Prospect, IL, US. Long hose let's you pump on both sides of your car!
    Photo of Costco Gas - Mount Prospect, IL, US. $3.45 was lowest price around
    Photo of Costco Gas - Mount Prospect, IL, US.
    Photo of Costco Gas - Mount Prospect, IL, US.
    Photo of Costco Gas - Mount Prospect, IL, US.
    Photo of Costco Gas - Mount Prospect, IL, US. Self serve, quick in and out.
    Photo of Costco Gas - Mount Prospect, IL, US. Type of gasoline offered
    Photo of Costco Gas - Mount Prospect, IL, US.
    Photo of Costco Gas - Mount Prospect, IL, US. Costco gas accepts Visa credit cards, and all debit cards!
    Photo of Costco Gas - Mount Prospect, IL, US.
    Photo of Costco Gas - Mount Prospect, IL, US.
    Photo of Costco Gas - Mount Prospect, IL, US. Hours
    Photo of Costco Gas - Mount Prospect, IL, US. So pretty, fresh..for me.
    Photo of Costco Gas - Mount Prospect, IL, US. HAHAHA "Utterly Terrifying"!!!who needs the movie???
    Photo of Costco Gas - Mount Prospect, IL, US. Always need lemons, don't be a sour puss ;)
    Photo of Costco Gas - Mount Prospect, IL, US. Love these..
    Photo of Costco Gas - Mount Prospect, IL, US. Craving. Just say no Nancy
    Photo of Costco Gas - Mount Prospect, IL, US. Antipasto..but go to an Italian deli instead..
    Photo of Costco Gas - Mount Prospect, IL, US. I could open this package right now!
    Photo of Costco Gas - Mount Prospect, IL, US. Raspberries $2.99
    Photo of Costco Gas - Mount Prospect, IL, US. Hmmm..looks good cause Im starving

    Review Highlights

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    Location & Hours

    Map

    999 N Elmhurst Rd

    Mount Prospect, IL 60056

    Larkdale Ln & Bob O Link Rd

    Mon

    • 6:00 AM - 9:30 PM

    Tue

    • 6:00 AM - 9:30 PM

    Closed now

    Wed

    • 6:00 AM - 9:30 PM

    Thu

    • 6:00 AM - 9:30 PM

    Fri

    • 6:00 AM - 9:30 PM

    Sat

    • 6:00 AM - 8:00 PM

    Sun

    • 7:00 AM - 7:00 PM

    Amenities and More

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    • Photo of AJ K.
      AJ K.
      Highland Park, IL
      180
      446
      1935
      Jul 24, 2018

      Here's what you need to know: lowest prices for Costco gas anywhere. Automatically implying lowest prices of gas anywhere :)

      Almost $.60 cheaper per gallon than most regular gas stations for premium 93 octane gas.

      Note that Costco has does not offer mid grade 89 octane gas. Only regular 87 and premium 93 octane.

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    • Photo of Tim A.
      Tim A.
      Arlington Heights, IL
      40
      478
      1809
      Jan 8, 2023

      Consistently (not always) the best gas prices around! Normally, Costco gas is about 25 cents less than gas stations in the neighborhood.

      But there is a price to pay for the really good prices - the lines are almost always long. Be prepared to wait 5-10 minutes.

      And don't forget your Costco membership card. You need to swipe it before you can buy gas.

      Also, Costco has extra long hoses on their pumps so you can go in any lane, regardless of which side you normally pump gas on. Highly recommended!

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    • Photo of Randy W.
      Randy W.
      Chicago, IL
      317
      294
      1424
      May 15, 2023

      Costco gas is convenient, quick (at the right times) and best value compared to any gas stations in the area.

      In my opinion, it's best to get gas then go into the warehouse to grab things so your exit is easier and more swift.

      Either way, Costco Gas and Warehouse at this location is the most convenient with extremely helpful associates.

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    • Photo of Jason P.
      Jason P.
      Arlington Heights, IL
      1538
      1271
      1086
      Sep 21, 2017

      Who doesn't love Costco? If you don't, then take yourself over to Sam's club, where they don't care about you at all.

      Not sure how anyone could complain about Costco. Good prices on quality stuff. Costco does a good job of stocking Organic foods and drinks.

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    • Photo of BB B.
      BB B.
      Rolling Meadows, IL
      0
      672
      190
      Jul 12, 2021

      7/2021 Great prices on gas, lots of space at this station always. Always a pleasant experience here.

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    • Photo of Melissa H.
      Melissa H.
      Buffalo Grove, IL
      194
      69
      119
      May 31, 2015

      What can I say that hasn't been said about Costco already?! Their gas is one of the top rated to use along with dirt cheap prices to go along with it. The membership pays for itself with just the gas alone! Great prices on tires and a great selection to go along with it. FYI if you bring in your empty printer ink cartridge they will refill it for half the price of buying ink brand new!! Great bakery goods like their AMAZING six pack of red velvet cupcakes available around Valentine's Day. Booze at great prices.....steaks....seafood.....chicken...oh, and one TINY little thing they have BEAUTIFUL jewelry.....yes, I'm admitting my engagement ring was purchased here....at first I laughed at the idea of checking out their jewelry section, but nothing my husband saw ANYWHERE came close to the uniqueness of my ring. I'd take a ring ANYDAY from there over a Zales, Kay's, or Rogers and Hollands.

      Love Costco and as you can see from my review the variety of items they offer is expansive!

      My Engagement Ring!
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    • Photo of Miguel M.
      Miguel M.
      Chicago, IL
      21
      639
      5180
      Sep 27, 2017

      I get gas from Costco all the time and since it's a self service there is not much to say other that how the place is. This place was not crowded and seemed like all pumps were working. Got there has right away and went on my way.

      Type of gasoline offered
      Self serve, quick in and out.
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    • Photo of Lefai K.
      Lefai K.
      Park Ridge, IL
      429
      1149
      2847
      Jul 17, 2013
      Updated review

      A tip for those who are contemplating a Costco membership or Sam's. I realize the difference between Costco and Sam's Club isnt just the price of membership. The products at Costco is actually bigger (if thats possible) than Sam's, so even though the prices at Sam's looks cheaper, if somewhat evens out as the product is smaller. For example, a 5lb bag of whey protein runs about $40 at Costco (great price, horrible flavor) while the one at Sam's runs for $30, but the bag is only 4.5lbs. Also, they don't carry a lot of variety in terms of the product, but that can be appealing for some people -- it overwhelms them less with so many choices. For example, they only carry one flavor of Dorritos, which is Nacho Cheese, so if you're looking for "Cool Ranch" or the other bazillion flavors Dorritos has to offer, your best bet is to go to Wally World.

      I decided on Costco primarily for the location -- its only a few minutes from where I'm at. Best/worst time to go is during the weekends. You can get your tummy full from sampling everything, but you'll get bowled over by people beelining to the free sample stations. I remember growing up in the city where the family would go to our local Dominick's for lunch (yes, we were dirt poor) by eating samples. Ah, the memories.

      This Costco is pretty well-kept and clean. The staff is friendly, even the ones behind the "Customer Service" counter and the selection of items is OK. They also have Costco Gas which is pretty cool as its generally 5-10cents cheaper than anything else around. From what I hear (not confirmed) their "Kirkland gas" comes from the same refinery as BP gas. The only downside is that Coscto gas does follow the Costco store hours, so if you're looking for gas late or early in the day, you might drive to a gas station with their gas pumps padlocked shut.

      BATHROOM REVIEW: Weirdly, I have yet to try out their bathrooms. I wonder if its "Coscto-ized" too; giant urinal cakes, toilets/urinals fit for 5 people at a time? Toilet paper that goes for miles while feeling like you're rubbing your butt on a fluffy pillowy cloud? Hmm... maybe I'll update this review after I try it ;-)

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      May 26, 2013Previous review
    • Photo of K P.
      K P.
      Mount Prospect, IL
      1
      31
      6
      Dec 13, 2016

      Ugh! I just bought a HUGE bag of tiny clementines (like the cuties or halos, but not those brands) and the ENTIRE bag is rotting! I go to Meijer and Fresh Thyme and ALWAYS get fresh fruit from them.
      Definitely NOT worth your elevated membership price. As a matter of fact, why in the world should we pay to shop at your store when I can go to at least 15 different stores in my immediate area that are SO much better. Sams has the exact same type of merchandise and so much MORE for a lesser yearly cost, too.

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    • Photo of Samantha F.
      Samantha F.
      Streamwood, IL
      3
      13
      3
      Oct 4, 2020

      Came to Costco for a few clothing items had no shopping cart. Went through checkout and the cashiers transferred the customer's items in front of us to another cart. They put our items in his old cart. I told my son to take the items out of the cart. The cashier assistant then asked us to take the cart to the front if we didn't want it. I replied "I don't want that cart it has not been sanitized". She then immediately got an attitude and said something to the affect of "Jesus Christ" as she huffed and puffed. Excuse me? I did not have cart when I came into Costco. I don't work for Costco so I should not have to put the cart away for you. My husband immediately came and asked the lady if she had a problem. She then changed her tune real quick and just kept saying "have a nice day". I immediately went to who I thought was a a manager who clearly did not want to deal with it and dismissed us. Very disappointed in Costco. First of all, we are In the middle of a pandemic. Do not hand me a cart that was someone else's and then get upset when I say no thank you bc it hasn't been disinfected. I am In The medical field and I am an essential worker just like you Costco. Did I deserve to be treated this way? One other thing, I also had surgery and have incisions in both my hands and couldn't push a cart even if I wanted to. But did you even bother to notice that before you gave me attitude? No. Will not be going back to this Costco and will be making a point to reach out corporate.

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