What fuel should I use in a CB450 / CL450 / CB500T? December 17, 2018 05:10 We recommend premium (92+ octane) fuel; if it can be found non-ethanol fuel as well. Related articles What is the fuel capacity of a CB450 / CL450 / CB500T? Honda CB450 / CL450 / CB500T Factory Service Manuals How to change the oil on the Honda CB450 / CL450 / CB500T What brake fluid should I use in my CB450 / CL450 / CB500T? CB500T Triple Tree Handlebar Riser Bushing Fitment