A man pouring automotive oil into a funnel in a car engine

We serve the automotive
& quick-lube industries

Dennis Oil Company, family-owned since 1940, is a large manufacturer/wholesaler of automotive lubricants and oils. We offer a comprehensive line of automotive engine oils, transmission fluids, anti-freezes, and other products to support the quick-lube industry.

Automotive & Quick-Lube Products

Automotive Oils

Multi-grade automotive oils for passenger cars. Semi-synthetic, fully-synthetic, dexos-approved, and motorcraft.

Transmission Fluids

Multi-purpose transmissions and transdraulic fluids for heavy-duty trucks, passenger cars, and tractors.

Greases

High-temperature, extreme pressure, food-grade, open-gear and semi-fluid, universal, moly, high-shock & load, sprayable, and roller lube.

Oil and Fuel Additives

Premium diesel-fuel improvers, gasoline-fuel additives, as well as oil additives and friction reducers.

Anti-Freeze

Heavy-duty extended life, oat, noat, green anti-freeze, and universal gold options are available.

Cleaners

Specialty hand, degreasers, asphalt cleaners, and industrial-strength cleaners for a variety of applications.

Power Steering Fluids & Other Oils

Power steering fluids, specialty and multi-purpose turbine oil, oven-chain lubricants, premium food-grade, form oil, heat-transfer oils, and rock drill oils.

Other products

  • Heavy-Duty Engine Oils
  • Gear Lubricants
  • Hydraulic Oils
  • Compressor Oils
  • Bar and Chain Oils
  • Food Grade Lubricants

Great automotive lubricants and oils to serve customers

A mechanic leaning over an engine wiping automotive oil from a dipstick

See why quick-lube shops have trusted Dennis Oil Company for more than 80 years!

  • Reliable product sourcing: Since we manufacture many of our products in-house, we are more protected from supply and demand issues that hit the market.
  • Effortless inventory: We can manage your inventory for you, so your tanks are always full.
  • High-quality products: We offer products that meet or exceed industry standards – backed by third-party laboratory testing.
  • Quick delivery: With four locations, we can get products to your shop quickly.

We also deliver 80-plus years of product knowledge and experience, so you get the best product for the job.

We Deliver Real Customer Service

Call us today

  • A real person will answer your phone call.
  • Our salespeople will meet you in person at your location.
  • Our delivery drivers will come to your door.

With four locations in Missouri, we travel as far as Kansas, Oklahoma, and Arkansas.