>I have an '87 5KTQW and in the last few months the MPG has dropped from an >average of about 27.5 mpg to about 22.5 mpg. Don't seem to have and >performance problems - great starting and acceleration. Any thoughts??? O2 sensor..... Later! Eric Fletcher S.O.C. '87 5KCSTQIA2RSR2B St. Louis, Mo Steadiric@aol.com