10 MPG local
12 MPG Highway
8.0 MPG life time average
I own a 93 GC I6 4.0, 152,000 Mile for 6 month.
6 month ago I replace new catalytic converter and distributor cape, I did engine flush, I changed 3 Gear box fluid.
I change oil and clean fuel injector every 3 month.
I change air filter last month.
I check oil and tire pressure every week.
The engine noise is normal. Engine idle speed is about 600.
But the MPG still very low, 20 gallons only run 200 Mile
What I should do? replace spark plugs or O2 sensors?
What's the MPG of your 93 GC I6?