Refined Fuels

Premium Diesel Fuel
Allegiant Oil Premium Diesel raises fuel to quality levels exceeding original equipment manufacturers specifications. It burns completely ashless and contains no metallic or agents found harmful in engines. ​
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Allegiant Oil has always prided itself in delivering top quality products along with top quality service to our Wisconsin customers.  That is why our diesel customers enjoy Ultra low-sulfur premium quality diesel fuels.  Our diesel fuels do not have any modifiers in them to cut down on the wax crystals in diesel fuels which lead to the “gelling” problem in low temperatures.  Instead, our diesel fuels are refined in such a way that the wax crystals are actually extracted from the fuels allowing them to perform better in low temperatures.  Cold weather diesel fuels are available according to season and perform in temperatures reaching -30°F.
Premium Heating Oil
Here in Southern WI, we deliver fuel oil to our customers on an “automatic” or a “will call basis.”  Fuel oil delivery on a “will call” basis allows our customers who like to monitor their own systems to specify specific delivery amounts and delivery times.
 

Diesel Treat 2000 TM Ultra Low Sulfur Diesel Premium

Diesel Treat 2000 is a multi-functional all-season diesel fuel additive formulated to boost fuel economy, improve cetane numbers, reduce emissions, fight fuel deposits, and increase lubricity protection
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40 is typical GPH on a 785 Caterpillar haul truck with 3512 engine.
​Based on a fleet of Mack trucks, 5,000,000 annual miles
Product Benefits
  • ​​Mileage improvement
  • Horsepower Improvement
  • Cetane Improvement
  • Emission Reduction
  • Inhibits Corrosion
  • Controls Moisture
  • Cleans Injectors
Carbon Treat
Add Carbon Treat to your deliveries or at the pump
Available in Winter and Summer treatment
Summer Performance Benefits 
  • Improves fuel’s cetane rating – up to 5 points.
  • Eliminates black filter deposits.
  • Reduces soot generated in an engine's combustion chamber.
  • Reduces emissions, exhaust smoke and particulates.
  • Anti-wear protection throughout fuel system.
  • Restores and optimizes horsepower.
  • Easier cold weather starting and faster warm up.
  • Protects fuel system against rust and corrosion.
  • Controls moisture.
  • Improves fuels economy.
Winter Performance Benefits
  • Protects against fuel gelling, waxing and fuel line freezing.
  • Improves fuel’s cetane rating – up to 5 points.
  • Anti-wear protection throughout fuel system.
  • Reduces soot generated in an engine's combustion chamber.
  • Eliminates black filter deposits.
  • Reduces emissions, exhaust smoke and particulates.
  • Restores and optimizes horsepower.
  • Easier cold weather starting and faster warm up.
  • Protects fuel system against rust and corrosion.
  • Improves fuels economy.


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Gasoline
We deliver 87E to farm and commercial accounts and also have it at our stations in Lancaster, Montfort, Platteville, and Rewey.
We deliver straight 87 to farm and commercial accounts and also have it at our Bulk Plant in Platteville.
​We have 91 at our station in Montfort.
​Neutra
Add Neutra to your deliveries or at the pump
Performance Benefits
  • Optimizes performance and fuel economy up to 5%.
  • Lowers the freeze point of any water that may be present in the fuel.
  • Increases lubricity. 
  • Reduces emissions, exhaust smoke and particulates.
  • Keeps injectors free from varnish, deposits and gum that cause inefficient operation.
  • Protects against rust and corrosion.
  • Stabilizes fuel during storage.
  • Strong wear protection for injectors, fuel pumps, compressor ring, upper cylinder, valve seats and guides.
Soy Ultra
Add Soy Ultra to your deliveries or at the pump
​Performance Benefits
  • Optimizes performance and fuel economy.
  • Improves drivability, smoother idling.
  • Reduces emissions, exhaust smoke and particulates.
  • Helps clean and control deposits, gums and varnish to restore and maintain performance.
  • Superb piston deposit control to reduce the risk of engine seizure.
  • Stabilizes fuel during storage.
  • Strong wear protection for injectors, fuel pumps, supplemental rings and valve trains.
  • Increases lubricity.
Kerosene
We carry Kerosene at our station in Platteville and Lancaster.  We sell in bulk or gallon jugs.

Fuel Tanks & Parts
  • 300 gallon - 12,000 gallon tanks  
  • Filrite pumps 
  • 300, 550, 1000 gallon Farm Skid Tanks 
  • Pump replacement parts  
  • Filters   
  • Hoses   
  • Nozzles  
  • Tank gauges   
  • Valves   
  • Breakaways   
  • Swivels  
  • Absorbent pads & more
Portable/Temporary Fuel Tanks
We have a limited amount of portable fuel tanks (500-1000 gallon) that we can provide for temporary job sites. These tanks have either a 12V pump or gas powered pump. Call today to see what we have available.
What We Fill
Our Minimum for delivery is 150 gallons
Agriculture Accounts
  • Fuel Tanks
  • Portable Fuel Tanks
  • Large Equipment such as Combines and Choppers
  • Generators
Commercial Accounts
  • Fuel Tanks
  • ​Portable Fuel Tanks
  • Large Equipment such as Excavators and Bulldozers ($30 equipment fill for under 150 gallons)
  • Generators
  • Refrigerator Trailers ($30 equipment fill for under 150 gallons)
  • Trains
  • Boats
Residential Accounts
  • Heating Oil Tanks