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372 Gas Stations in or near O'fallon, MO
Circle K in O Fallon (602 N Main St)
602 N Main StO'FallonMissouri63366USA
Phillips 66 in O'fallon (914 Bryan Rd)
914 Bryan RdO'FallonMissouri63366USA
Circle K in O Fallon (2035 State Hwy K)
2035 HIGHWAY KO FALLONMissouri63366US
Circle K in Lake Saint Louis (1001 Lake St. Louis Blvd)
$2.90 13¢ Cashback
0.0 •3.8 mi away
1001 Lake St Louis Blvd, Lake St Louis
Circle K in Lake Saint Louis (1001 Lake St. Louis Blvd)
1001 Lake St Louis BlvdLake St LouisMissouri63367USA
Circle K in Lake Saint Louis (1001 Lake St. Louis Blvd)
$2.90 13¢ Cashback
0.0 •3.8 mi away
1001 LK ST LOUIS BLVD, LAKE SAINT LOUIS
Circle K in Lake Saint Louis (1001 Lake St. Louis Blvd)
1001 LK ST LOUIS BLVDLAKE SAINT LOUISMissouri63367US
Circle K in Cottleville (4524 Mid Rivers Mall Dr)
$2.80 12¢ Cashback
0.0 •4.8 mi away
4524 Mid Rivers Mall Dr, St Peters
Circle K in Cottleville (4524 Mid Rivers Mall Dr)
4524 Mid Rivers Mall DrSt PetersMissouri63376USA
Phillips 66 in O'Fallon (7430 MO-N)
7430 MO-NO'FallonMissouri63366USA
Huck's in O'Fallon (328 South Main)
328 S Main StO'FallonMissouri63366USA
Phillips 66 in O'Fallon (102 McDonald Ln)
102 McDonald LnO'FallonMissouri63366USA
Mobil in O'Fallon (8695 Veterans Memorial Pkwy)
$2.99
0.0 •0.7 mi away
8695 Veterans Memorial Pkwy, O'Fallon
Mobil in O'Fallon (8695 Veterans Memorial Pkwy)
8695 Veterans Memorial PkwyO'FallonMissouri63366USA
Find the best priced gas stations in or near O'fallon. Ready to fill up? Save up to .40 cents per gallon of gas when you use the Way gas card and app at your local O'fallon gas station.
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Frequently Asked Questions and Answers
What are gas prices in O'fallon, MO?
The average gas price in O'fallon, MO is $3.47.
What are the three types of gas at the pump?
Gas stations usually offer three gas octane grades: regular (usually 87 octane), mid-grade (usually 89 octane), and premium (usually 91 or 93 octane).
Can a gas car run diesel?
Gas and diesel engines are incompatible with each other's fuel. A diesel engine cannot run on gasoline, and a gasoline engine cannot run on diesel.