Route A Data Set (58.7 mile distance)| Label | Date/Time Stamp | Consumed | FE | Outside Temp | Intake Temp | HAI Status | %Change |
| B | 2012-05-12 1:40 AM | 3.04 gal | 19.31 MPG | 55 F | 98 F | Active |
| A | 2012-05-18 1:27 AM | 3.12 gal | 18.81 MPG | 49 F | 68 F | Off | -2.56% |
Another B-A set, though I don't think I will be doing any more for a bit.
As can be seen, there's a small difference between the 58.7 mile run with the HAI active, and with the HAI turned "off." I put "off" in quotes because there's still a 19 F difference between outside air temp and intake temp. Apparently, that heater valve leaks more than I had thought. I must put in a heater valve that doesn't leak when closed (preferably one that can be electrically controlled from the cab).