Where to Find Cheaper Gas and How Prices Actually Work

The fastest ways to find cheaper gas near you

Gas prices change by location, brand, and time of day. The quickest way to find the lowest price in your area is to use a price-tracking app or website that shows real-time rates at nearby stations. GasBuddy, GetUpside, and Waze all display current prices at stations within a few miles of you, updated by other drivers or the stations themselves. You can sort by price, distance, or both.

If you do not want to use an app, call ahead. Most gas stations post their current price on a sign visible from the street, and many will tell you the price over the phone. Warehouse clubs like Costco and Sam's Club often have lower per-gallon rates than standard stations, though you need a membership and they may have fewer locations near you.

Timing matters. Gas is typically cheapest early in the week (Monday through Wednesday) and most expensive on Friday and Saturday when more people drive. Prices also tend to drop slightly in the late evening and early morning, though the difference is usually small — a few cents per gallon at most.

Key Takeaways

• GasBuddy, GetUpside, and Waze show real-time gas prices at nearby stations and let you sort by lowest price first.
• Warehouse clubs like Costco and Sam's Club typically charge less per gallon than standard stations, but require membership and may be farther away.
• Gas is usually cheapest Monday through Wednesday and most expensive Friday through Sunday.
• Fuel rewards programs from grocery stores and credit cards can save 10 to 50 cents per gallon if you meet spending thresholds.
• Prices vary by region and brand; the same gallon can cost 30 to 50 cents more at one station than another a few miles away.

How fuel rewards programs actually work

Many grocery stores and gas station chains offer rewards programs that lower your per-gallon price. Kroger Fuel Points, Safeway Rewards, and Shell Fuel Rewards all work similarly: you earn points when you shop or buy gas, then redeem them for discounts at the pump. The discount typically ranges from 10 to 50 cents per gallon, depending on how many points you have accumulated.

To use these programs, you need to link a loyalty card or phone number at checkout. Some grocery store programs let you earn points on food purchases and redeem them at their affiliated gas stations — for example, Kroger shoppers can earn fuel points on groceries and use them at Kroger fuel centers. Credit card rewards programs work differently: you earn cash back or points on all purchases, which you can sometimes redeem for gas discounts, but the savings are usually smaller than a dedicated fuel program.

The catch is that you have to spend enough to accumulate meaningful discounts. A typical grocery store program might require $100 to $200 in purchases to earn a 20-cent-per-gallon discount. If you do not shop at that store regularly, the program may not save you money.

Why prices differ so much between stations

Gas prices are set by each station owner, not by a central authority. A Shell station and a Chevron station across the street from each other can charge different prices because they buy from different suppliers, pay different rent, and set their own margins. Brand-name stations (Shell, Chevron, Exxon) typically charge more than independent or off-brand stations because drivers perceive them as higher quality, even though the fuel itself is often similar.

Location also drives price differences. Gas stations near highways, in wealthy neighborhoods, or in areas with few competitors tend to charge more. Stations in rural areas may charge more because they have fewer customers to spread costs across. Stations in cities with many competitors often charge less because drivers can easily switch.

Wholesale fuel costs change daily based on global oil prices, refinery capacity, and supply disruptions. When wholesale costs rise, stations raise prices within hours. When wholesale costs fall, stations raise prices faster than they lower them — this is called price stickiness, and it means you may not see savings at the pump for several days after oil prices drop.

Regional and seasonal price swings

Gas costs more in some states than others because of taxes, fuel blends, and refinery access. California, Hawaii, and Washington typically have the highest prices in the country because of state fuel taxes and environmental regulations that require special fuel blends. States in the Midwest and South usually have lower prices because they have more refineries and lower taxes.

Prices also shift with the seasons. Summer gas (May through September) costs more because it requires a special blend that reduces smog. Winter gas (November through February) costs less but is only available in certain regions. Spring and fall are transition periods when prices can swing sharply as refineries switch blends.

If you are planning a long road trip, check prices along your route before you leave. Filling up in a low-price state before crossing into a high-price state can save you several dollars. However, do not drive far out of your way just to save a few cents — the extra gas you burn will cost more than you save.

What to watch for when comparing prices

Not all gas is the same grade. Regular (87 octane) is the cheapest and is what most cars need. Mid-grade (89 octane) costs a bit more and is rarely necessary. Premium (91 or 93 octane) costs significantly more and is only required for certain high-performance or luxury vehicles. Check your owner's manual or the inside of your fuel door to see what your car needs — using a higher grade than required does not improve performance or fuel economy.

When comparing prices between stations, make sure you are looking at the same grade. A station that advertises a low price for regular may charge more than competitors for premium. Price-tracking apps let you filter by grade, so use that feature to compare apples to apples.

Watch out for stations that charge extra for paying with a credit card. Some independent stations add a surcharge (usually 5 to 10 cents per gallon) if you do not pay cash. The advertised price is often the cash price, so confirm before you pump.

How to use price tracking to plan your fill-ups

If you check gas prices regularly, you can time your fill-ups to avoid the most expensive days. Most drivers see prices rise on Thursday and peak on Friday or Saturday, then drop again on Sunday or Monday. Filling up on Tuesday or Wednesday typically saves you the most.

Some price-tracking apps send alerts when prices drop below a threshold you set. GetUpside, for example, lets you set a target price and notifies you when a nearby station hits that price. This works best if you have flexibility in when you fill up — if you drive the same route every day, you may not be able to wait for the cheapest day.

Keep in mind that driving to a cheaper station farther away can cost more in gas than you save. If a station is 5 miles away and charges 10 cents less per gallon, you need to fill up at least 10 gallons to break even. For a typical 15-gallon fill-up, you would save about $1.50 — which is worth it if the station is on your route, but not if you drive out of your way.

Frequently Asked Questions

Do I really save money with a warehouse club membership?

It depends on how often you fill up and how close the warehouse is. Costco and Sam's Club typically charge 20 to 40 cents less per gallon than standard stations. If you fill up twice a month, you save $6 to $12 per month, or $72 to $144 per year. A Costco membership costs $60 per year, so you break even after about five fill-ups. If the warehouse is far from your home or work, the extra driving may erase the savings.

Why does gas cost more on weekends?

Prices rise on weekends because demand increases — more people drive for leisure trips. Stations know they can charge more when more drivers are on the road. Prices also tend to rise on holidays and before long weekends for the same reason.

Can I save money by using a specific credit card?

Some credit cards offer 3 to 5 percent cash back on gas purchases, which adds up if you fill up frequently. However, these cards often charge annual fees or require high spending to unlock the best rewards. Calculate whether the cash back exceeds the annual fee before signing up. A card with 3 percent cash back saves you about $30 per year on $1,000 in gas purchases.

Is premium gas worth it if my car does not require it?

No. Premium gas is only necessary for vehicles with high-compression engines, which your owner's manual will specify. Using premium in a car that needs regular does not improve fuel economy, performance, or engine life. You are just paying extra for no benefit.

How far ahead should I check prices before a road trip?

Check prices the day before you leave and again the morning of your trip. Gas prices can change overnight, so a price you saw yesterday may be different today. Use a price-tracking app to map out the cheapest stations along your route, but do not rely on prices more than a few hours old.