Yes: I hit a 40 mpg mixed tank
No: I didn't get the aero mods set up (especially for Winter).
Long Story Short, the engine block heater works great -- it gets the coolant and tranny fluid up to efficient temps early. Torque Converter engagement works great with using the EBH -- but otherwise
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I would've liked a manual override (difficult) -- but tightening the throttle linkage actually gets the engine to lug at 35 mph in full lockup
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Otherwise, the Transmission Control Unit has a mind of its own. It needs lots of warmth.
Cold soaks and highway runs (read: parking at the airport) ends up with a tough engagement problem. The TCU needs
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and rabbit transitions to calculate loads. I just need to take the time to fool with it
RH77