Quote:
Originally Posted by andrewwynn
Very true that the mpg is not necessarily that accurate but the change should be reasonably accurate. That said, I've seen big changes in mpg after changing some component like the O2 sensors but after 100 miles back to normal.
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I hoped I would see a change after changing my O2 sensors that had over 200k miles on them. Nothing. I even went in and cleared all adaptations on the truck. Still no change. Oh well.