Check South Carolina gas prices today for regular, mid-grade, premium, and diesel fuel. The price tool below shows AAA-sourced daily averages, recent price movement, and a fill-up cost estimate for drivers across the Palmetto State.
What Affects South Carolina Gas Prices?
- Heavy commercial trucking and port freight demand along the I-95 and I-26 corridors from the Port of Charleston
- Seasonal tourism spikes heading to Myrtle Beach, Hilton Head, and the historic Charleston coast
- South Carolina’s state motor fuel tax and local infrastructure fees
- Delivery distances to remote, rural communities in the Pee Dee region and the Upstate
- Supply logistics from Gulf Coast refineries and regional pipeline networks
- High commuter and freight traffic connecting the Charlotte and Atlanta metro fringes via I-85 and I-77
South Carolina Gas Prices by Fuel Type
- Regular: The standard baseline fuel for most daily commuters and passenger vehicles.
- Mid-grade: Recommended for older high-compression engines or vehicles towing boats to the coast.
- Premium: Necessary for luxury, turbocharged, or high-performance vehicles to prevent engine knocking.
- Diesel: Tracks closely with commercial freight, port logistics, and heavy-duty trucking across the state’s highway network.
South Carolina Gas Prices vs Nearby States
Regional borders in the Southeast create noticeable price shifts. When planning cross-state trips or driving along the coast, keep these comparisons in mind:
- North Carolina gas prices and Georgia gas prices often differ due to varying state taxes, environmental mandates, and local supply chain dynamics.
- Prices can be higher or lower depending on regional pipeline access, Gulf Coast refinery conditions, and daily market demand.
- Cross-border commuters near Charlotte or Savannah may find slight savings or premiums depending on daily supply routes and municipal fees.
Tips for Getting Better Gas Prices in South Carolina
- Compare station prices in Columbia or Greenville before heading onto rural stretches of I-95 or US-501.
- Fill up your tank before driving through remote, agricultural areas in the Pee Dee region or the Upstate foothills.
- Check your tire pressure regularly, especially during extreme summer heat and high coastal humidity.
- Stick to regular unleaded unless your vehicle’s manufacturer explicitly requires premium.
- Plan your diesel and fuel stops along major freight corridors before long commercial hauls to the ports.
- Avoid unnecessary idling in heavy summer tourist traffic heading down to Myrtle Beach or Charleston.
South Carolina Gas Price FAQs
What is the average gas price in South Carolina today?
The current daily averages for regular, mid-grade, premium, and diesel are displayed in the dynamic tool at the top of this page.
Why do Charleston and Greenville gas prices differ?
Charleston relies heavily on Port of Charleston marine shipping and dense coastal tourism demand, while Greenville is influenced by I-85 freight corridors and different regional pipeline distribution networks.
Why can rural areas in the Pee Dee region cost more at the pump?
Stations in remote farming towns face less local competition and higher overhead costs for fuel delivery over longer distances from major interstate distribution terminals.
Is diesel included in South Carolina gas price data?
Yes, the tool tracks South Carolina diesel prices alongside unleaded options, which is essential for commercial truckers, port logistics fleets, and RV travelers navigating the state’s freight corridors.
Does South Carolina use special gasoline blends?
South Carolina generally uses standard federal EPA fuel blends for most of the state, which helps keep production and transportation costs lower than states with strict boutique fuel mandates.