I need help with gas and miles till empty!
 

Okay so I've Had is problem for a while, I drive a mile or 2 and my Miles till empty will go down like 15 miles. Im not a bad driver or anything I try to conserve gas but it keeps going down. Ive tried changing the fuel filter, dirty fuel came. But its go worse.

Is this normal or do you guys think somethings wrong with my 325i.
Thanks in advance

That thing usually is off sometimes. Do you notice the gas gauge needle going down quickly? How many miles do you drive on a full tank? daily city/highway driving

Ya the needle drops too, I've never really measured the miles on a full tank but on the dash its around 310-350. city 13-15 highway 20-25.

Normal.