Updated April 5, 2026 — Prices updated regularly from EIA data
$2.89
Regular Unleaded (87 octane) per gallon
About Regular Unleaded in Bismarck
Today's regular gas price in Bismarck, North Dakota is $$2.89 per gallon. Regular 87-octane is the default choice for most American cars, trucks, and SUVs. If your owner's manual says 87 or regular, this is your grade.
When to Use Regular Unleaded
Best for: everyday driving
Vehicle types: most cars and trucks
Fuel Price Comparison in Bismarck
Fuel Type
Price
vs. Regular Unleaded
Octane
Regular Unleaded THIS PAGE
$2.89
—
87
Premium Gasoline
$3.61
+$0.72
91-93
Diesel Fuel
$3.91
+$1.02
N/A
Regular Unleaded in Nearby Cities
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All Regular Unleaded sold in Bismarck must meet minimum federal standards. TOP TIER certified stations add extra detergency additives. Most major brands (Shell, Chevron, Costco, Wawa) are TOP TIER certified. Non-certified independents meet legal minimums only.
In Bismarck, Regular Unleaded is priced at $$2.89 per gallon versus ${regularPrice} for regular — a ${diff} per gallon premium. On a 15-gallon fill-up, that's ${fillDiff} extra. Over 50 annual fill-ups, the premium adds ${annualDiff} to your fuel costs.
If your car requires premium and you accidentally fill with regular, modern engines have knock sensors that retard timing to prevent damage. You may notice reduced performance and slightly worse fuel economy. Fill with premium on your next fill-up. This is a minor issue if it happens occasionally.
Follow your owner's manual recommendation regardless of whether the car is new. Engine break-in does not require a specific fuel grade. Use what the manufacturer specifies from day one.
