How to use a fixed asset as an item in the Sales Invoice without marking as sold(selling it)

I have a car rental business managing it from ERPNext. However, my cars for hire (also my fixed assets) when I select them in a sales invoice ERPNext is automatically pulling the gainl/loss on disposal account instead of the revenue income account since I’m not selling this asset but just hiring . How can I achieve this in ERPNext

You need a new no stock item as the rental service that you will use to invoice the client.
Then you can use different time units of measure that can be linked to lists of prices to manage it.