My friend gets 13-15 highway and 10-13 city with his auto V6 but thats with 33s. I have 35s and get 20-22 highway and 15-18 city but I have over 300hp infront of my 5spd so I don't have to stay in the throttle much at all.
The V6 from that era isn't known for its power or fuel economy, sucks but thats life. Just be glad you have a 5spd.
