What fuel should I use in a CB450 / CL450 / CB500T? Common Motor December 17, 2018 05:10 Follow We recommend premium (92+ octane) fuel; if it can be found non-ethanol fuel as well. Related articles What are the carburetor stock size jets for my Honda CB450 / CL450 / CB500T? What is the carburetor float height for my Honda CB450 / CL450 / CB500T? How do I rebuild a Honda CB450 / CL450 Carburetor? What size tires do I need for my CB450 / CL450 / CB500T? How to Synchronize Carburetors Honda CB350 / CL350 / SL350K0 Comments 0 comments Please sign in to leave a comment.