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This blog is about my search for better fuel economy for my truck. I have a 2004 Toyota Tundra Double cab with a V8 engine, four wheel drive, and a four speed automatic transmission. Of all the years the Tundra has been available it appears that the 2004 DC truck, because of its size and engine/transmission configuration, gets the worst mileage of all the Tundras. The Gross Vehicle Weight of the truck is 6600 pounds and the EPA fuel economy rating for the truck is 14 mpg in the city and 17 mpg on the freeway. In all honesty these fuel economy figures are both generous and unrealistic.

I have a personal Blog with more detailed information about my testing and my findings. Detailed spreadsheets of my fuel economy and test conditions can be emailed from my email account at highwaylizard@gmail.com

Please feel free to subscribe to my blog here on this forum through the RSS feed or my personal Blog.

Thanks for looking and ask any questions you may have.
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General Observations 4-30-2009

Posted 05-03-2009 at 11:52 AM by Highwaylizard
Well here it is the end of another month and what a month it has been. With the start-up of the landscaping business the fuel economy numbers have been all over the place due to pulling a loaded trailer. As a result of the business being back up and running I have not had much opportunity to generate a lot of freeway miles. Adding additional variables to the testing this month were a failed oil seal on the rear axle and the installation of a True Flow air intake and filter.

The...
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MPG Numbers 4-30-2009

Posted 05-02-2009 at 02:34 PM by Highwaylizard
Filled up today:
  • All city driving with some trailer
  • 297.0 miles
  • 21.094 gallons Shell87
  • 14.0798 MPG
  • .8056 increase in MPG since last of city driving
Excluding the miles generated pulling the trailer on the highway:
  • Overall average city driving for this month 14.2129 MPG
  • Overall average highway driving for this month 15.2785 MPG
Well, this is the last fill-up for the month which means the next post will be a General Observations post which details and...
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MPG Numbers 4-26-2009

Posted 05-02-2009 at 02:32 PM by Highwaylizard
Updated 05-02-2009 at 02:34 PM by Highwaylizard
Filled up today:
  • All city driving with trailer the entire distance
  • 208.3 miles
  • 15.692 gallons Shell87
  • 13.2743 MPG
  • 1.5405 decrease in MPG since last of city driving with trailer
Excluding the miles generated pulling the trailer on the highway:
  • Overall average city driving for this month 14.2571 MPG
  • Overall average highway driving for this month 15.2785 MPG
Even though I logged a decrease in mileage for this round of numbers I am not disappointed....
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MPG Numbers 4-24-2009

Posted 05-02-2009 at 02:28 PM by Highwaylizard
Filled up today:
  • All city driving with trailer at least half of the miles
  • 229.4 miles
  • 15.471 gallons Shell87
  • 14.8148 MPG
  • .5267 decrease in MPG since last of city driving
Excluding the miles generated pulling the trailer on the highway:
  • Overall average city driving for this month 14.5794 MPG
  • Overall average highway driving for this month 15.2785 MPG
I am rather pleased with these numbers – especially in light of the fact that they were generated...
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MPG Numbers 4-20-2009

Posted 04-20-2009 at 06:21 PM by Highwaylizard
Filled up today:
  • All highway driving with trailer
  • 177.0 miles
  • 13.986 gallons Shell87
  • 12.6555 MPG
  • 1.0266 increase in MPG since last of highway driving
Excluding the miles generated pulling the trailer on the highway:
  • Overall average city driving for this month 14.0290 MPG
  • Overall average highway driving for this month 15.3607 MPG
Actually pretty darn good numbers considering that they reflect the last leg of pulling a loaded trailer. The last...
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