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Recovered lost mpg finally
Not so much of a success, but I finally found the cause of the loss of MPG I got several years ago.
Apparently the O2 sensors were gradually going bad, not bad enough to set codes directly, but bad enough that it was causing problems with clogging the EGR system.
I changed them out a few weeks ago, but hadn't had a chance to do a good run to see what the economy was like.
So today I had to drive to Albuquerque, 80+ miles one way, it was definitely not optimal conditions, the way up I had straight on headwinds in the 40-50mph range, on the way back they had largely died off.
But still 163miles +8% for tire size burned 6.7 gallons for 26.27mpg... which is back to what I used to get several years ago. I have been getting in the 24-26mpg range, so its still not outside the realm of error, but it was definitely driving better.
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