Regular Unleaded Prices in Biloxi, MS

Updated April 5, 2026 — Prices updated regularly from EIA data

$2.71

Regular Unleaded (87 octane) per gallon

About Regular Unleaded in Biloxi

Regular unleaded (87 octane) in Biloxi, Mississippi costs $$2.71 per gallon today. This is the most widely used fuel grade — over 60% of US passenger vehicles require only regular, making it the most competitive and price-sensitive fuel market.

When to Use Regular Unleaded

Best for: everyday driving

Vehicle types: most cars and trucks

Fuel Price Comparison in Biloxi

Fuel TypePricevs. Regular UnleadedOctane
Regular Unleaded THIS PAGE$2.71—87
Premium Gasoline$3.39+$0.6891-93
Diesel Fuel$3.67+$0.96N/A

Regular Unleaded in Nearby Cities

Gulfport$2.75Mobile$2.98Hattiesburg$2.98New Orleans$2.70Metairie$2.91Kenner$2.86
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Frequently Asked Questions

For vehicles designed to use Regular Unleaded, using the correct grade maintains engineered fuel economy. Upgrading from regular to premium in a regular-fuel car produces no economy improvement. Using regular in a premium-required car may reduce fuel economy slightly.
National Regular Unleaded prices average ${natPrice} per gallon. Biloxi's current price of $$2.71 is {comparison} the national average. Regional refinery access and state tax differences drive most of the variation.
TOP TIER certification means the fuel exceeds EPA minimum detergency standards. Studies suggest TOP TIER fuels meaningfully reduce engine deposits vs. minimum-standard fuels. Most major brands (Shell, Chevron, BP, Costco) are TOP TIER certified.
Mixing grades is generally fine in practice — your engine's knock sensors will adjust timing accordingly. If your vehicle requires premium and you add some regular, no immediate damage occurs. Consistently running below the required octane in a performance engine is not recommended long-term.

Related Gas Price Pages

All Fuel Types in BiloxiGas Prices in MississippiCheapest Regular Unleaded in BiloxiCompare All StatesPremium Gasoline in BiloxiDiesel Fuel in BiloxiShell Regular Unleaded - BiloxiExxon Regular Unleaded - BiloxiBP Regular Unleaded - BiloxiChevron Regular Unleaded - Biloxi