Mpg results:
-Low speed 1-2mpg less
-High speed is 1-2 mpg better
Reason:
Torque curve is raised. Torque: 98 lb/ft at 4,800 rpm, vs (97 lb/ft at 3,000 rpm USDM).
This is why the VEI has a lower final drive (3.72 vs 3.25).
Note:
VEI 98 octane specified. I went to 93, still have some ping under high load.
Summary:
Switch to VEI if cruising at high speeds. This in a D15z1 powered HF would make for amazing mileage at 75mph. For me, I'll probably switch back since I rarely break 55 (USDM speed limit at the time).
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Shooting for 600 miles of range at 65-70 mph out of a vx.
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