snowchaser

This car I am looking at tomorrow owner states 25 easily on the highway (Avant). I have never gotten that good of results from my 20V sedan of which the computer will never seem to go above 22.5 on a long trip at 75-80MPH. What do you get? Could I need a new O2 sensor or have some other issues or is this normal.

mcorrow

My 87 5000csTQ gets 26-28 (10v 1.3bar stock setup)

birdmanmt

my 87 5kTQ EFI'd, lots of mods still gets over 25mph if i baby it.

Mystified

My 91' 20V A gets 22 mpg on a reg. basis. Combo of hwy & intown. I am known to have a lead foot!

aerohr

My best was a 200 mile trip from Keene, NH to Glens Falls, NY that was a 31.0 MPG... this was right after I changed the 02 sensor.

02 sensor definitely makes a serious difference when its old.

City driving I see maybe 17 highway usually 22-25.

Currently I have about 15 mpg average on my 5 mile drives to and from school... but things aren't quite right yet fuel / air wise.

snowchaser

Nice 20V Avant! My sedan 20V get's 22 MPG avg so I guess the guys that say 25-26 are wrong.

pureroundcircle

I get about 18 in the city, 24HWY for chipped 10vt after changing the O2, before i got about 16/20.

200Q20v

if I reset the computer while on the highway I get 27 after 20 min of regular, not easy, driving at 70-80 mph in ny&nj... not a perfectly flat landscape and no cruise.

instantaneous readings can go to 30ish on flat stretches.

as soon as I hit the city driving, mileage drops drastically.