I am currently getting around 11.9 to 12.1 L/100 km so the converted to Imperial MPG is 282.481/12.1 =23.35 MPG...I use 91 to 94 Octane fuel most of the time and have installed the preformance chip from Ford.
I installed the Ford Performance Tune which is Vin Locked on my 2025 RR.
#M-9603-REB30 with the ProCal 4 tool.
Gives the 3.0L EcoBoost a upgrade too 455HP and 536 lb-ft @3000 RPM
I have a new 2025 RR with the 3L twin turbo and i am getting 12.5L/100 on the highway and 13.8L/100 in the city and averaging of around 12.8L/100..The truck has 16,000km on it so it's just broke in..