mods and gains (2003 Chrysler T&C 3.8)

[hillbilly83]

2003 Chrysler t&c 3.8, modified my factory air box into a wai, did a 90% upper grill block and about 60% on the lower grill. Sealed off gaps between hood and headlights with foam/rubber weather stripping. Before mods my OEM fe gauge never averaged more than 22.8 mpg. After mods the gauge read 28.5 mpg during a 30 mile trip of rural driving occasional stop and go. I know they say dont trust the OEM gauge, but ive tested with the pump in the past with results within 0.2mpg, so regardless there has been an increasr. Also like to add that I have a custom self made luggage rack, zombie bug out type on the top that I refuse to remove. Pump to pump test to verify coming soon.

[MetroMPG]

Nice improvement.

Do you keep a fuel log? Long term numbers will tell the better story.

[hillbilly83]

no I dont, but I should start. Im also putting an air dam on tonight.

[Mustang Dave]

Originally Posted by MetroMPG

Long term numbers will tell the better story.

Good point. One fill over 30 MPG in a 4 liter Ford Mustang may be an anomaly. 28 consecutive fills over 30 MPG... That may establish a trend.