I'm going to get the Torque Pro real time monitor on my wifes truck before our next trip...

2010 Sport Trac 4.6 3v and it just rolled over 100K miles... Seeing any misfire/misfires before the ECU even throws a code I think is helpful thing to know when diagnosing an issue OR for peace of mind while on a trip...

http://www.cnet.com/how-to/monitor-y...p-for-android/