11 miles burned 3682mAh or 334mAh/mile.  It carried 14oz of food back, so it benefited greatly from the transmission rebuild & new tires.  Dialed the wheel diameter to 109mm with no obvious change in speed.

The next 11.25 miles were manely flat, without headlights, & burned 3608mAh.  Did some 200m intervals.  It did feel a little hotter at 109mm.  Drove through a puddle & the motor stopped.  Managed to get it going again after waiting a long time for it to cog.  Eventually, it wouldn't restart & the CPU was dead.  It was the 1st time such a puddle completely disabled a vehicle.  It must have reached into the CPU compartment.  Just a dot of water on a reset pin can disable it.  Another problem area is the bootloader, which is hung by any stray signals entering the RX pin, but this appeared to be a reset issue.  It was a very slow 1.5 mile walk before the CPU booted again.

The previous puddle encounter caused the tachometer to fail.  It had to be pulse driven until it finally worked again.