Been giving the tank a few runs over the past few days to check fuel economy to see if the new O2 sensor is working. I think it is though, because I've gone from roughly 19mpg to 25.2.
Hoping that by replacing the bad knock sensor it'll improve even more.
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Current car: BMW x3 2.0d (The one with the M47 engine!)
Rolled off the line on December 14th, 2004.
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