Roads

I believe it was Jean that doubted my sanity for travelling on some of the … roads … I travel.
That’s two separate issues Jean …
Had to shift into 4x from here.
Probably Colorado; maybe northern New Mexico. Probably 13,000 ft or better.

I believe it was Jean that doubted my sanity for travelling on some of the … roads … I travel.
That’s two separate issues Jean …
Had to shift into 4x from here.
Probably Colorado; maybe northern New Mexico. Probably 13,000 ft or better.
13k ft?
Does that create any kind of problem with combustion? Like, fuel-air mixture? Or are modern vehicles with pressurized injectors immune to such things?