I've been tracking my fuel economy for over three years now

mapco · **Joined:** Tue Jan 09, 2007 4:27 am **Posts:** 250

Liberator wrote:

how did u log all this data? on board computer? scan gauge II?

thx

I track all the info in a logbook in my glovebox, then enter the data every few months into www.mymilemarker.com

stevebaz · **Joined:** Mon Jan 18, 2010 11:25 am **Posts:** 10

Get rid of the K&N filter and clean your maf sensor. Use only sensor cleaner.
Bad oxygen sensors can give you bad milage. So can plugged cats.
E-10 and now E-15 gas can account for a 10% drop in milage alone.

kj-dec · **Posted:** Wed Mar 02, 2011 11:10 pm

Depending on what EPA forces stations in your area to sell in place of real gasoline (if you are in an attainment area) the reformulated garbage can cause a significant decrease in mileage. My 2002 V6 dropped 1.5MPG on chicagoland winter gas (tested by buying gas outside the area; mileage immediately jumped back up for the rest of that tank). My previous Dodge W250 dropped 5-6 MPG on winter gas. As mentioned above, gas diluted with ethanol will also cost you mileage.

I've been tracking my fuel economy for over three years now

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