+150 miles later heres the data (raw)
................................out bound........Return..................Average
With wheel covers..........28.5.............29.2
...................................29.8........... ..30.7
...................................29.2........... ..29.7
...................................29.4........... ..29.8
...................................29.7........... ..30.1....................29.6 mpg
Wheel covers removed....28.0.............28.2
...................................28.0........... ..28.5*
...................................28.0........... ..28.2
...................................27.7**......... .27.7**................28.0 mpg
With wheel covers..........29.0.............29.5
..................................28.8............ ..28.0 **
..................................28.7............ ..29.5
..................................28.8 ..............29.4...............29.0 mpg
(sorry about the odd table format - got to be abetter way- but I don't know it
)
A-B-A average 29.3 mpg with vs. 28.0 mpg without
* scan gage was reset 0.2 miles into course due to possible semi interference, so this run is .2 miles shorter
** I may have punched it too hard on acceleration - the ECU seems to stay in a higher performance/ lower FE mode for ~90 seconds or so after +50TPS - My bad - not very Hypermiler like. very noticable loses in real time at beginning of course - not too much difference in the averages over the course.
Variances noted, but all data is used in findings