The Verizon Networkfleet connector for GeoEvent 10.3 has been updated 3/25/2015. This update added more fields to the Diagnostic message. The following fields were added:
"EventTime"
"EventTimeUTF"
"Odometer"
"EngineHours"
"TotalGallons"
"BufferType"
Here's the download location:
http://www.arcgis.com/home/item.html?id=720c28f0ef72426792012d10c37a251a