Buc-ee's San Marcos, TX

Buc-ee's San Marcos Gas Price Today

Looking for the Buc-ee's San Marcos, Texas gas price? Buc-ee's doesn't publish fuel prices online, and the price at this store changes with the market, sometimes more than once a day. For today's price, check a driver-reported fuel app or this store's Google Maps listing; at the store, the big price sign at the entrance shows every grade.

Buc-ee's is known for pricing fuel competitively, and its prices are often at or below nearby stations.

Fuel at Buc-ee's San Marcos, TX

• Pumps: open 24 hours a day, 7 days a week.
• Gasoline: regular, mid-grade and premium unleaded.
• Diesel: at the pumps for cars and pickups. 18-wheelers aren't allowed at Buc-ee's.
• DEF: available at the pump.
• Ethanol-free gas: yes (87 and 90 octane).

Diesel price at Buc-ee's San Marcos

The Buc-ee's San Marcos diesel price is posted on the same sign as gas and changes daily too, so check the sign or a fuel app for the Buc-ee's San Marcos diesel price today. Diesel is for passenger vehicles and pickups. More on fuel types and EV charging in the Buc-ee's gas guide, or find the Buc-ee's near me.

Fuel & Travel Amenities at Buc-ee's San Marcos

Pulling off the highway into Buc-ee's in San Marcos, TX offers a seamless travel stop with wide fueling bays and pristine restrooms. Here is what is available at this store:

⛽ Fueling Options

• Standard Grades: Regular (87 octane), Midgrade (89 octane), and Premium (93 octane).
• Diesel Fuel: High-speed diesel pumps available at passenger vehicle islands.
• DEF (Diesel Exhaust Fluid): Available directly at the pump islands.
• Ethanol-Free Gasoline: Yes, dedicated ethanol-free pumps available for boats, lawn equipment, and small engines.

⚡ EV Charging & Car Wash

Standard passenger vehicle amenities available. Check nearby highway exits for dedicated EV hubs.

This store does not feature a car wash tunnel, focusing its massive footprint on maximum fueling lanes and retail space.

🍳 Kitchen & BBQ Schedule

• Hot Breakfast & Tacos: 4:00 AM – 10:30 AM daily (Sausage kolaches, Beast burritos, biscuit sandwiches).
• Texas Round Up BBQ: 11:00 AM to midnight+ (Hot sliced and chopped brisket carved fresh on the board).
• Grab-and-Go Cooler: 24 hours a day (Fresh salads, wraps, fruit cups, cheese packs).

⭐ Signature Food Counter Favorites

Driving through? Don't miss these top-selling roadside items available fresh at this location: