17.5 is stock
Your gas gauge level is prolly off.
Specifically which light? the low fuel on gauges?
usually that doesn't come on, i usually fill up when the dic flashes low.
Nothing says lovin' like burning out your fuel pump.Lately ive let it get closer to E only cuz i want to extend my fuel milage as much as i can and when i refill its usually reading 15-15.5 gallons. Otherwise my gas milage has increased nicely from when i was stock. Getting at least 40-50 miles more per tank plus im drivin with less lead foot too.