Question

Can a Protector Series diesel generator be connected to an auxiliary (separate) diesel fuel tank?

Answer

No. Protector Series diesel units are designed to operate using the integrated base fuel tank supplied with the generator. Integrated tank capacity varies by model/configuration at the time of purchase, but these models do not include provisions for connecting an auxiliary or separate diesel tank. For safety and performance reasons, do not connect the generator to any external diesel tank or modify the fuel system.

IMPORTANT: Fuel system components and capacities are engineered for the specific generator model. Any alterations can affect fuel delivery, emissions compliance, alarms, and may affect warranty coverage.

Related information for gaseous (LP/NG) models

• See tank size requirements in What Is the Minimum Size of Propane Tank that Can Be Used with a Home Standby Generator?
• See fuel configuration options in What kW Sizes Does Generac Offer for Their Liquid-Cooled Standby Generators?

IMPORTANT: LP tank sizing and permitting must follow local codes and fuel supplier requirements. Always consult your local fuel provider and installer.

Next steps

• Find a local dealer for installation and fuel guidance.
• Use the product lookup page  to download product manuals for your model.