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Ontario, CA

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Costco Gas

4.6 (21 reviews)
Closed • 6:00 am - 10:00 pm

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4/23/25 First time here! $3.69/gal
Jennifer W.

3/11/26 Yardstick for gas? Costco regular unleaded $4.69/gal (no such thing as cash price lol) Premium: $4.89/gal. Brace yourselves, folks! Our "situation" (yes putting it mildly) will sky-rocket fuel prices close to $7.00/gal, according to a radio station I was listening this morning. It's already close to $6/gal in DTLA. Yes, membership has its privileges, but for how long? Top-tier gas at Costco (coz Costco shops around to give its members the best benefits)

Sung W.

This Costco gas at ontario business center is my new fave. I've been coming here like every 2 weeks since it opened and it's actually insane how smooth it is. Brand new pumps, spotless so many lanes (5). I pull in at 4 pm on a Friday and just roll straight up to a pump , no line, no waiting, no fighting for a spot like the other Costcos where you're stuck 15-20 mins easy lol. Filled up couple days ago in literally 6-7 minutes and bounced. Same cheap gas but zero headache. if you're anywhere close just come here, trust me you'll never wanna deal with the other ones again.

5 pumps in each lane times 6 lanes hence 30 pumps at this Ontario, Canada Costco gas station.
Ray N.

Standard Costco gas station with a couple of things that do stand out: 1) Open till ten o'clock at night Monday to Friday which is huge. 2) 5 pumps in every lane. Love that. 3) 4.09 per gal for reg unleaded which is 23-29 cents lower than the stations around. 4) Joshua the young gentleman in charge of this area here is stellar. He helped a senior lady with the entire process. Loved that. Greeted me as he came by circling and ensuring all Costco gas customers were happy. Absolutely!

My favorite Costco gas, let's keep the prices lower than than the other gas stations.
Christina L.

Fast drive thru when need to pump gas off the 10 fwy exit. Costco gas, keep the gas prices lower for us in the Inland Empire.

Sunil R.

The Costco Gas by the Costco Business Center in Ontario is clean, well‑organized, and easy to get in and out of. It's open early in the morning and stays open late into the evening, so you've got plenty of time to fuel up throughout the day.

Chaos S.

Costco has the best gas price within the surrounding area. I happen to do a search for costco gas in a zoomed out map and their gas price varied per location. Once compared to all the other gas stations nearby, it was more inexpensive than the rest. It is best to fill your car in the evenings because it will not be as crowded as any other time of the day. Besides it will be morr efficient for having less evaporation.

Hours of operation- Costco Gas at the  Costco Business Center
Vuoch L.

Now open!!! Costco Gas sation at the Costco Business Center is now open!!!! Anyone with Costco membership is welcome to use the gas station and shop at the Business Costco Center. Right off the 10 fwy exit Haven Ave. And close proximity to the Ontario International AirPort, a convenient location to fill up your rental vehicle before returning to the airport to avoid paying the higher prices at the airport rental rate.

All memberships
Francine L.

A new Costco gas station has popped up, right next to the Costco Business Center. For now, there really isn't. A crowd of people is coming to this station. Every time I have been here it had been either no wait or just a little wait of 5 minutes. Overall the facility itself is clean and everything is new. You just need a Costco membership to pump gas. So if you don't have one then you might not be able to use it. Also there is no bathrooms it is just gas pumps and that is it.

Leilani M.

This new gas station is a convenient stop for Costco members before returning a rental car at Ontario airport. Plenty of pumps, well lit and open space. Designated exit lane clearly marked for directional flow. Right in front of the main Costco warehouse. Easily accessible for gettin in and getting on your way. Thanks V!

6 lanes. 5 cars per lane. 30 spots.

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3 months ago

Helpful 2
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4 months ago

Helpful 4
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26 days ago

Helpful 7
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7 months ago

Helpful 10
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11 months ago

Helpful 48
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11 months ago

Helpful 11
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5 months ago

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3 months ago

Super Big gas station super low-key never busy always affordable great hours always clean always a worker cleaning up

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8 months ago

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10 months ago

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8 months ago

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5 months ago

Stopped for gas. 5 pumps per lane. The line moved quickly. It was efficient. Costco gas is the cheapest!!

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2 years ago

Helpful 11
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2 years ago

Helpful 4
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8 months ago

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2 years ago

Helpful 41
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4 months ago

Great prices, qaulity is also great for my German car, long are usually pretty long but it's worth the wait.

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6 months ago

Two pumps make the difference. Sam's Club lines are longer and move slower. Weekday mornings easiest til 11:30

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2 years ago

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2 years ago

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1 year ago

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Ask the Community - Costco Gas

Review Highlights - Costco Gas

“The Costco Gas by the Costco Business Center in Ontario is clean, well‑organized, and easy to get in and out of.”

Mentioned in 4 reviews

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Mobil

Mobil

(8 reviews)

MEDIUM-SIZED GAS STATION OFF 10 Freeway...I came by for some gas as I was on my way to a Yelp event…read moreand this gas station was right off the freeway. It's a little hard to enter as there's a divider on Shelby that prevents you from making a left turn into the premises. The Mobil has great vibes, I loved the music they were playing and people seemed to be in a good mood. I was rocking out to Scandal's "The Warrior" while I was pumping gas, it was fun! The gas station was pretty clean and I was easily able to find a slot to refuel. The gas lasted me for a while and was relatively cheap compared to Chevron. I trust Mobil's gas quality as it's lately been my go-to. I didn't request any other services other than acquiring gasoline. The Mobil is near Ontario's hotel hub and some eateries, if you're taking a road trip or just hanging around, I'd recommend coming here. I didn't run into any staff on this visit. I would request they add more parking space for customers who are not buying gas.

It's the most convenient gas station because it's right by the 10 freeway entrance. I got gas here…read moreand feel like I got ripped off. I put what I thought was $20 but when I turned my car on to leave, my gas mileage didn't go up and neither did the dial. I had get on the 10 freeway and drive to 4th Street to the Shell gas station there to add more gas and that's when I noticed the dial moved up. Not sure what was going on here, but it did make me rethink going here as a last resort. I'd rather go down 4th Street to the Shell gas station by the 10 freeway entrance.

Arco AM/PM

Arco AM/PM

(21 reviews)

CLOSE TO THE 10! I visited this convenient gas station before heading to the 10 freeway and it's…read morepretty easy to get to. The Arco is pretty clean and the drinks are cheap. I was sad there were a couple things missing like hot dogs, heated food, and crushed ice. Gas prices are decent for an Arco. The station is a good size so you can get a lot of sweet treats and canned/bottled drinks. You can also get cases of water and other items if you're staying in the hotel hub here in Ontario or heading to an event. The fountain drinks weren't watered down and were well-filled. The quality of service was a bit gruff but no one was rude.

This Arco is conveniently located near the freeway. Contrary to other reviewers, the number of…read morepumps is actually pretty high compared to similarly located Arcos at least in other areas. When I gas up mid day on weekdays I have not had trouble getting a pump like some other reviewers complained. Further, and contrary to other reviewers, and similar to other Arco's the cashiers here have been polite enough when I just buy gas. Like other Arcos it is actually some of the customers who are not nice. They will fight for you for the pumps they want and dangerously cut you off. This may be due in part to the fact that their pumps do not extend like at other locations and so you need to get the pump that is on the side of your car with the gas cap. Of course that is no excuse for some people's behavior, just a possible reason and something to keep in mind when filling up here. Additionally, and like many other Arcos, there is usually at least one homeless person lurking near the pumps, but none have aggressively approached me at this location so far as they do at other places. Based on other customer's reviews, I would recommend not making purchases here other than gas in order to avoid problems with the cashier. There is a Target right near by and you can get the same items there for a cheaper price. So save yourself the potential hassel at Arco and just get gas here and get items at Target.

Costco Gas - servicestations - Updated October 2026

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