I now have about 11k miles on my Ecopias and 1 full year. Now that fairly consistent weather/commute patterns have returned, I have been able to get a better idea on MPGs of these tires. Before the Ecopias I had Turanza EL400 (OEM). My round trip commute would return 42-43 MPGs regularly and now I'm hitting 43-45. I don't think the tire is completely responsible for all the increase but I feel safe in saying the tires definitely improved the MPGs. If I had to guestimate, I'd say the tires are responsible for about 0.75 MPG improvement.
One other factor that has changed from when I was on my Turanzas is I'm now running Mobil 1 0W-20 AFE where as I was running Pennzoil before.
EDIT: I forgot, I did change from OEM air filter with 40k miles on it to a new Fram at the end of winter time. I don't think that would make a measurable difference, though.
One other factor that has changed from when I was on my Turanzas is I'm now running Mobil 1 0W-20 AFE where as I was running Pennzoil before.
EDIT: I forgot, I did change from OEM air filter with 40k miles on it to a new Fram at the end of winter time. I don't think that would make a measurable difference, though.
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