Speedy Mart Exit 8
PHILLIPS 66
3275 Old Belle Road
Spearfish, SD
South Dakota
Available Fuel Types
⛽
87 octRegular (E10)
Standard gasoline with 10% ethanol
🟢
Non-Ethanol (E0)
ConfirmedEthanol-free gasoline (E0) — ideal for boats, classic cars, and small engines
91 oct
Quick Info
- State
- South Dakota
- Brand
- PHILLIPS 66
- Fuel Types
- 1
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Data sourced from the DOE Alternative Fuels Data Center, OpenStreetMap, pure-gas.org, state records, and community reports. Station info may not reflect current conditions. See disclaimer.