Fleet Lubricant Supplier | Made-in-USA Bulk Oils & DEF

Your Made-in-USA Fleet Lubricant Supplier

Ultra1Plus (Ultrachem LLC) is a Made-in-USA manufacturer supplying fleets with the complete fluid lineup — heavy-duty diesel engine oils, transmission fluids, coolants, DEF, hydraulic and gear oils — in bulk drums and 265-gallon totes. Consolidate your purchasing with one specified, dependable supplier and control your cost per mile.

Request a fleet quote — send your products, grades, and volumes; our team responds with availability and pricing.

Built for fleets

  • Heavy-duty diesel engine oils — API CK-4/SN grades (e.g., 15W-40) for on-highway and mixed fleets.
  • Diesel Exhaust Fluid (DEF) — high-purity DEF for SCR systems, by the tote or drum.
  • Transmission & drivetrain — ATF (Dexron VI / multi-vehicle), gear oils (GL-4/GL-5).
  • Cooling — heavy-duty antifreeze/coolant (IAT, OAT, NOAT) in concentrate or 50/50.
  • Hydraulic — anti-wear hydraulic oils for lifts, PTO, and equipment.

Why fleets choose Ultra1Plus

  • One supplier, full range — engine, drivetrain, cooling, DEF, and hydraulics from a single source.
  • Made in the USA — domestic manufacturing and supply reliability.
  • Fully specified — products meet the API/ILSAC and OEM requirements your equipment calls for; PDS and SDS available for every product.
  • Bulk formats — 55-gallon drums, 265-gallon totes, pallets, and truckloads.
  • Cost control — bulk purchasing and a consolidated fluid program reduce cost per mile and PO overhead.
  • Responsive B2B service — talk to a real team about your equipment and volumes.

How a fleet program works

  1. Tell us your fleet — equipment types, fluids, grades, and annual volumes.
  2. We build the spec & quote — matched to your OEM requirements.
  3. We supply — by drum, tote, pallet, or truckload, with PDS/SDS on file for compliance.

Request a fleet quote · Open a wholesale account · Call +1 (888) 685-8721 · sales@ultra1plus.com

Frequently asked questions

Who supplies lubricants for fleets in bulk?

Ultra1Plus (Ultrachem LLC), a Made-in-USA manufacturer, supplies fleets with heavy-duty diesel oils, ATF, coolant, DEF, hydraulic, and gear fluids in 55-gallon drums and 265-gallon totes. Request a fleet quote for availability and pricing.

What diesel engine oil do you offer for fleets?

Heavy-duty diesel engine oils in API CK-4/SN grades such as 15W-40, available in bulk formats. Confirm the grade your engines specify on the product page or with our team.

Do you supply DEF in bulk?

Yes — high-purity Diesel Exhaust Fluid for SCR systems is available by the drum and tote.

Are your fluids made in the USA?

Yes. Ultra1Plus is manufactured by Ultrachem LLC in the United States.

How do I set up a fleet lubricant program?

Send us your equipment types, fluids, grades, and volumes. We'll match OEM specs, quote it, and supply in the formats you need with PDS/SDS on file.