[CobraMarty]

So this last trip, 75mph, A/C on, 92*.
First half max mileage 438, final max miles 408, 15.14 gallons, 24.71MPG.

This is about worse case until winter gas comes.

[CobraMarty]

Just like last week, 93*, A/C on, 75mph, light traffic with a few slow downs.
First half max mileage 438. Return trip in a few days.

Home- 75mph, some slower- heavy rain, on/off A/C, 14.25gallons, 24.70mpg.

For this upcoming weekend trip, I think that I will 'unplug' the inlets on the aFe intake box and retest to see that it gets less mileage at speed when inlets are open. Theory being that the stock front grill inlets with scoops builds up a '+' pressure in the intake box and makes slightly better mileage. And when the inlets on the aFe box are open, this '+' pressure is vented out and hence decreased mileage.