Quote:
Originally Posted by thinkxingu
I think a lot of this depends on the vehicle's design, gearing, etc. I actually get better mileage (per my calculations and onboard computer) at 70 (22+) then I do at 65 (~21). Around 75, it begins to dip. If staying at 30-40 on back roads, I can hit mid-30's in my 4Runner!
In terms of safety, under 70 becomes unsafe...at least on Route 3 South between 6-8 AM and 3-5 PM!
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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.