Premium Gasoline Prices in Great Falls, MT

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

$3.97

Premium Gasoline (91-93 octane) per gallon

About Premium Gasoline in Great Falls

Premium gasoline (91-93 octane) costs $$3.97 per gallon in Great Falls, Montana today. High-performance and luxury vehicles depend on premium's higher octane rating to prevent knock and maintain the performance they're engineered to deliver.

When to Use Premium Gasoline

Best for: high-performance engines

Vehicle types: luxury and performance vehicles

Fuel Price Comparison in Great Falls

Fuel TypePricevs. Premium GasolineOctane
Regular Unleaded$3.18$-0.7987
Premium Gasoline THIS PAGE$3.97—91-93
Diesel Fuel$4.30+$0.33N/A

Premium Gasoline in Nearby Cities

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Frequently Asked Questions

Use GasBuddy and filter by fuel type to see current Premium Gasoline prices at stations near your location in Great Falls. Warehouse clubs and high-volume discount stations typically offer the best Premium Gasoline prices.
All Premium Gasoline sold in Great Falls 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 Great Falls, Premium Gasoline is priced at $$3.97 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.

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