North Charleston Gas: $3.49-$3.86; Diesel at $5.40

Current retailer listings at two North Charleston 7-Eleven stations show regular gasoline ranging from $3.489 to $3.859 per gallon. Diesel was listed at $5.399 per gallon at both locations. These are station-level prices, not a citywide average.

Regular gas differed by 37 cents

The 7-Eleven at 2704 Ashley Phosphate Road listed regular gasoline at $3.489 per gallon. The location at 3564 Montague Avenue listed regular at $3.859.

That is a 37-cent spread between the two checked stations. On a 15-gallon fill-up, the difference would be about $5.55 before loyalty discounts or other payment-related savings. Drivers making regular commutes or repeated trips across North Charleston may want to compare prices along their route rather than assume nearby stations are charging the same amount.

Diesel was $5.399 at both stations

Diesel was listed at $5.399 per gallon at both the Montague Avenue and Ashley Phosphate Road locations. The 7-Eleven pages say gas prices were updated within 24 hours, but the retailer listings do not provide an independently verified timestamp.

Diesel costs matter especially for contractors, delivery operators, landscapers, construction crews and other businesses that use fuel-intensive vehicles. Fuel expenses can also affect delivery costs, restaurant supply runs, service calls and construction estimates, depending on how much fuel a business uses and whether it passes those costs through to customers.

AAA metro benchmark is lower for regular gas and higher for diesel

AAA’s Charleston-North Charleston metro table, dated August 1, 2026, listed an average of $3.673 per gallon for regular gasoline and $5.271 for diesel. The metro figures cover a broader area than North Charleston and should not be treated as the price at every local station.

Compared with that metro benchmark, the Ashley Phosphate Road regular-gas listing was lower, while the Montague Avenue listing was higher. Diesel at both checked 7-Eleven locations was below the AAA metro average.

What the prices mean for local drivers and businesses

For commuters and households, the station-to-station difference can add up when a tank is nearly empty or a vehicle is fueled frequently. Contractors, delivery drivers and other diesel users may feel the impact more sharply because they often purchase larger volumes.

Prices can change quickly, so drivers should verify the pump price before filling up and compare nearby stations when practical. What are the highest and lowest gas or diesel prices you are seeing around North Charleston? Share them with other local drivers.

Sources

• 7-Eleven fuel listing — 3564 Montague Avenue
• AAA Charleston-North Charleston metro fuel-price table