Ten trucks running standard maintenance intervals produce 100 to 200 gallons of that oil every month, more than enough to keep the fuel supply steady through next winter in a place like Greeley or Cheyenne. The fuel for waste oil heating for trucking fleets is already sitting in your shop. Supply is the driving force behind how fast that pays off. A busy auto shop accumulates enough oil to matter over the course of a season, while a multi truck fleet yard hits that same volume in a matter of weeks.
Why Do Trucking Fleets Produce So Much Used Oil?
Ten trucks need ten oil changes, not one. The federal used oil rules name fleet maintenance facilities as one of the primary used oil generators nationwide, right alongside service stations and quick lube shops. That's the core advantage; waste oil heating for trucking fleets beats any system that depends on fuel you have to buy.
Scale is what separates fleet operators from smaller generators who might need years to build up the same fuel supply.
How Many Gallons of Waste Oil Does a Fleet Produce?
About 250 to 350 gallons a month, for a typical 10-truck fleet running through standard oil change intervals. That's more than double what a single bay repair shop generates, and it's enough volume to support a larger commercial unit, often in the 350,000 to 500,000 BTU range, depending on bay count and how often the doors swing open during a shift.
Smaller fleets running 3 to 5 vehicles produce 75 to 125 gallons a month, enough to justify a smaller unit over a longer run window. Run 20 or more trucks across multiple bays, and a higher output system or a waste oil boiler starts making more sense, especially if the facility includes wash bays or radiant floor zones alongside open service areas. Vehicle count and bay layout drive that decision more than any spec sheet formula, and your actual numbers matter more than either.
A Fleet Switch Changes a Few Things Day to Day
Switching to waste oil heating for trucking fleets starts with storage. Oil coming off ten or more vehicles needs a dedicated tank, properly labeled, with secondary containment required in many states, and sized for what a fleet actually produces, not what a single shop would need.
Then there's the hauler contract. Most fleets pay a service provider on a recurring schedule to remove used oil no matter how much there actually is, which means the disposal cost stays fixed even as the fleet grows. Cutting that contract entirely saves more than trimming the per gallon fee, removing both the cost and the scheduling headache of coordinating pickups around an already busy shop calendar.
Is Waste Oil Heating Worth It for Your Fleet?
Vehicle count, oil supply, and facility size tend to line up for most fleets running ten or more trucks, and when they do, waste oil heating for trucking fleets makes a real difference on the heating bill. Scale it up and the math still holds. Con-way Truckload generates roughly 3,200 gallons of used oil a month across its fleet, and the company's maintenance leadership has said burning that oil to heat its inspection bays is currently more cost-effective than selling it off.
Interstate Energy has worked with trucking yards and municipal fleets across Colorado and Eastern Wyoming for decades, a UOMA member since 1986. Financing options are available for qualified fleets too, so the upfront cost doesn't have to come straight out of operating cash.
Contact us and we'll walk through your vehicle count, your oil supply, and what you're currently paying to heat the shop.