And you are a fucking nitwit. I suppose my 16.8mpg with 3.73 gears was pulled out of someone's ass? Leave it to you to go off on a extreme tangent. Btw, nothing about you could ever injure me lol.
You are coming off as ignorant. Guess what - I have achieved more than 16.8 mpg at higher than 1800 rpm. I cruised at 65 mph, 3100 rpm with 31’s and 4.10s and got 18.5 mpg.
There are times when more rpm will hurt mpg but it is not a blanket statement like the way you put it. There are many times when more rpm helps efficiency. Too low of rpm lugs the motor and hurts efficiency.