My old 2.3 got better milage and performance with 91. I think with the extra milage cost difference was negligible so I always used 91. I've only used 91 on my RR. I think Ford's turbo engines do take a noticeable advantage with higher octane.
I’m getting 15 in Sport mode and just over 16 in normal. I can’t keep my foot out of this thing, so that’s about what I expected. I mean really, you don’t buy a RR for the gas mileage! ?
Yes, drove my tuned 2019 in sport mode 99% of the time and my new RR is about the same after the break in...
I had to shave some of the rail off my Bakflip f1 so the tailgate can close. The 2024 has a deeper protrusion when the tailgate is closed then the gen5. Looks like it works just fine.
Reset the mpg and see what you get after a week. My 2019 with the same 2.3 never got lower than 18 at the worst with very spirited driving with a tune.