(some are more radical than others, but they can only help. Biggest gains for me in MPG were through changed driving style and scangauge guidance
)
areas to focus on for FE improvement: driving, aero, tires, weight
driving:
- get a scangauge or way to see instant MPG
- go through the "100+ tips" and do as many as you can (not sure what you already do but do what you are comfortable/safe with)
tires:
- switch to low-rolling resistance tires
aero:
- add grill blocks
- add rear wheel skirts (front are trickier to make)
- remove antenna
- remove passenger side mirror
- add belly pan
- add boattail
- add smooth hubcaps to wheels
weight:
- remove more weight (ie. back seat, passenger seat, A/C, etc...)
- lose weight from driver