Diesel Fuel Prices in Duluth, MN

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

$3.97

Diesel Fuel (N/A octane) per gallon

About Diesel Fuel in Duluth

The going diesel rate in Duluth is $$3.97 per gallon today. Diesel prices vary meaningfully by station — check price apps before large fill-ups to avoid overpaying.

When to Use Diesel Fuel

Best for: commercial and towing

Vehicle types: diesel trucks and commercial vehicles

Fuel Price Comparison in Duluth

Fuel TypePricevs. Diesel FuelOctane
Regular Unleaded$2.93$-1.0487
Premium Gasoline$3.66$-0.3191-93
Diesel Fuel THIS PAGE$3.97—N/A

Diesel Fuel in Nearby Cities

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Frequently Asked Questions

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.
Vehicles requiring Diesel Fuel typically include diesel trucks and commercial vehicles. Your owner's manual and the label inside your fuel door specify the required grade. Using a lower octane than required can cause engine knock and reduce performance over time.
Only if your vehicle requires or recommends it. For vehicles designed for regular 87 octane, there is no measurable performance benefit from upgrading to Diesel Fuel. If your manual specifies Diesel Fuel, the investment protects your engine.
Diesel Fuel in Duluth is currently priced at approximately $$3.97 per gallon. Nearby cities have comparable prices within 10-15 cents depending on their state's tax structure and local competition.

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