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Fuel Service & Maintenance.

One of the most common causes of failure and reduction in performance is insufficient attention paid to a generator systems diesel fuel supply. Diesel fuel left standing for extended periods degrades substantially to the point of becoming totally useless.

Standby generator systems are particularly susceptible to diesel fuel issues because their fuel source is left standing for several months exposed to the factors that degrade diesel.

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Nationwide Generator Service.

Ultimate Service Associates (USA) is the nation's premier generator set maintenance and repair management organization. Since the company began, we have maintained a very high client retention. Many of our current clients are Fortune 500 companies and chose USA over all of the other available options.

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Contact Us.


Ultimate Service Associates
5514 South Lewis Ave. 
Tulsa, OK 74105 
Phone: (918) 836-8701 
Fax: (918) 835-2748 
contact@usa-svc.com



Mission Statement.

Ultimate Service Associates' mission is to provide quality generator system service as a single point of contact nationwide.

We Are the Ultimate Service.

We are the "Ultimate Service" when it comes to Single Source Nationwide Generator Service and Maintenance, our name says it all.


Macrogrids vs. Microgrids and Applications of Engine Generator Systems.

This information sheet covers the differences between a Macrogrid and a Microgrid, where and why Microgrids are being adopted, and the application of engine-driven generator systems in each of the grid systems.

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5514 South Lewis Ave.
Tulsa, OK 74105
918.836.8701 (Phone)
918.835.2748 (Fax)