[CleanNeon98]

1996 honda accord v6 ex fully loaded 128k miles auto. this is my friends car and its getting horrible fuel economy if you can call it that. In the city he is getting 12.9mpg, and 15 on the highway. He has an ebay intake thats getting swapped for a stock one, and we cleaned the TB with CRC and ran seafoam through the fuel system, but nothing has changed. he gets this MPG no matter how he drives, and its horrid. What can we do to increase the miles per gallon? i was thinking the fuel filter might be in need of replacement, any ideas?? the car is rated for 19/25mpg btw