Alright everybody me and the family (my wife and my 5 & 3 year old girls)are driving from San Diego,CA to Jacksonville, FL! Gonna be my first time doing this , my longest road trip was from San Diego to Lompoc , I averaged 34 MPG . This was before all the mods I did. So it's gonna be interesting to see what I get this time. Hoping it improves. I have the Force 2 flowmaster system, Airaid CAI, Throttle body spacer, Diablo Intune . I also have the TV's in the headrest for the kids with separate DVD player for them, while my wife can watch dvd's in the front. Just hoping and praying all goes well in this trip. Got new tires got an alignment and got and oil change . I was thinking about getting a transmission oil change aswell . thinking about going royal purple . I got 38,100 miles on her now. Thoughts on what tune I should use for better MPG anyone?