Fuels and Lubes

As Northern Illinois and Southern Wisconsin’s largest supplier of lubricants, motor oils, fuels and related products, Kelley Williamson services hundreds of car dealerships, many commercial fleets, the local aviation industry, the industrial and the agricultural markets. Select from the options below for more product and service information.

Click here to contact us, or call 815-397-9410, or toll free, 800-553-1675.



Full line distributor of the following brands:

  • Mobil (Automotive / Industrial / Fleet-Commercial
  • Mr. Goodwrench (Automotive) (To GM dealers only)
  • Chrysler – Mopar (Automotive) (To Chrysler dealers only)
Automotive Products Industrial Greases Aviation Products
Industrial Products Specialty Products Industrial Oils

Aviation Products

Engine Oil

Mobil Jet Oil 254
Mobil Jet Oil II


Mobil Aviation SHC 100
Mobilgrease 28

Hydraulic Fluid

Mobil Aero HF
Mobil Aero HFA

Engine Oil

Kelley Williamson Co.
1132 Harrison Ave.
Rockford, IL 61104

Phone: 815-397-9410 | Toll Free: 800-553-1675

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