When I Ask Jeeves, he says MPG at altitude goes UP due to manifold air pressure (or Johnson rods rotated) or something and that lower octane fuel - in this case 85 - is a better alternative. I recently (in the last 5 days) moved to CoSprings from Spokane. 2,500' vs. 6,500' and my milage has gone down.
Can a car guy/gal, or engineer with communication skills explain it as if I'm 6?
Can a car guy/gal, or engineer with communication skills explain it as if I'm 6?