Hello,
My wife's 94 850 non turbo wagon w/ 188K makes 14mpg city -big time stop and go, 19 mpg combined and 24mpg interstate. I did almost everything, switch to syn blend oil (not full syn), new plugs, air filter, rebuilt tranny, new tires, new flame trap- throttle service, use octane 89, check vacuum leaks, Not sure if my cat is bad or O2 sensors but i have don't get bad codes all 1-1-1. Although during cold starts(SOCALweather-no biggie) i smell gas fumes and there's a tick sound ( lifters perhaps) and it goes away after some time. My spark plug wires seems ok.
Basically car runs great just kinda' running out of options before i throw in the towel of DIY projects and visit my honest but $$$ indy volvo shop to save on gas costs.
Thanks in advance again for your valuable insights and inputs.
more power to our brick board!