The RoadMaster mod is an extremely useful addition to FS25, offering a range of valuable data and options for monitoring vehicle operation.
Information such as the odometer, fuel consumption, engine temperature, RPM, average speed, and range all enhance the player’s experience while providing opportunities for more efficient vehicle management and operation.
All features and settings are easily accessible in the game, allowing everyone to customize the information display to suit their preferences during gameplay.
Open RoadMaster (RM) – “Left Ctrl + n” key combination (default)
Reset Trip Counter – “Left Ctrl + m” key combination (default)
There is a feature that is currently in Beta status. Unfortunately, I haven’t been able to test it on a server.

Changelog:
V1.1.0.0
– New variable: lastDieselFuelUsage, which shows the fuel consumption of diesel vehicles, not AdBlue consumption
– Creation of global settings
– Continuous display of the odometer counter on the HUD
– GitHub issues#2 fixed
– GitHub issues#1 fixed
– DescVersion increased
Changelog 1.0.0.1:
MP issue, fixed
Compatibility issue with Real Vehicle Breakdowns mod – fixed

Credits:
MathiasHun