Diesel Additives Make All The Difference

additivesNo matter the size of your vehicle or construction equipment fleet, rely on Bear Oil Company and Power Service diesel additives to provide year-round diesel engine performance improvement, trouble-free extreme weather operability and proper fuel tank hygiene.  

Request a free year round maintenance schedule with the recommended usage guidelines for seasonal additives.

Or you can always call 210-494-3479 and contact Bear Oil Company for assistance.

Tanks & Equipment

In addition to selling all equipment and tanks, Bear Oil offers a tank rental program to fit your changing needs.

  • 500-3000 gallon rental tanks in our inventory
  • Tank delivery and pickup available
  • Low monthly rates
  • Permit assistance available

We sell tanks and all of the equipment you need.

  • 12v and 110v pumps available
  • Replacement hoses and nozzles
  • Fuel pump meters
  • Transfer tanks for pickup trucks and flatbeds
  • TerraGair Ultrapure DEF
  • Power Service Diesel Additives


Delivered Fuels

Bear Oil’s Fleet of trucks can handle all of your fueling needs.

Contact us today for more information.

 highway diesel highway diesel highway diesel



Bear Oil stocks bulk and packaged lubricants to serve a diverse customer base. Contact us to solve problems, reduce cost, and consolidate inventory.

If we don’t have the oil you need, we’ll find it for you!

  • Gasoline and diesel engine oils
  • Transmission fluids
  • Hydraulic fluids
  • Antifreeze
  • Turbine oils
  • Aviation lubricants
  • Industrial lubricants
  • Compressor lubricants
  • Fire resistant and Nonconductive oils
  • Dry film lubricants
  • Metal working fluids
  • Corrosion preventatives