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Old 10-03-2022, 02:47 PM   #18
thinkxingu
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Quote:
Originally Posted by LikeLakes View Post
Not to be a naysayer, but I'm going to be a naysayer. Cars, especially SUV's, pretty much can't get better mpg's at higher speeds once you are over 55 or so. Not questioning your math, more the trip in totality, you can't calculate just the time at 70 or 65, it's in combination with other speeds and factors.
Any (professional) physics nerds here who can answer this definitively?

I always thought mileage was an equation with more than just aerodynamics and that RPM, gearing, etc. all matter.

In fact, I started keeping to 70 after reading about how the 4Runner's sweet-spot RPM is 2k, and my calculations have always supported that.

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