[V8] Bad MPG, O2 Sensor?

[tlastre01 at sprintpcs.com]

About a week ago I decided to replace my O2 sensor, at the same time I did my fuel pressure regulator, plugs and fuel filter. My car has 144k so I decided to replace just for good measure. What a difference, it feels as if it just gained at least 30 horses. the response is incredible. We drive the car regularly and fail to register the gradual wear and decrease in performance. My fuel filter had the beautiful 4 ring logo so I'm jumping to the conclusion that it was a factory unit, the gas flow was probably restricted due to gradual clogging. Anyway, preventive maintance is better than it's to late maintance.
Tomas
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