Joined
·
8 Posts
I just finished my first real cross country trip in the Prius and noticed some really weird behavior with the fuel tank. Nothing bad, mind you, but it can throw you for a loop. Here's what happened:
Start of trip I decided to top off the tank as I had driven back and forth to work a few days and wanted to start from scratch with a completely full tank. So I did.
Got to first fuel stop some 330 miles away and put in 8.5 gallons. That indicates a 39 MPG trip on the interstate with AC.
Second stop was after 181 miles. Put in 2.5 gallons. That is 72 MPG, same interstate, AC on. I did the second stop to fuel up with E-10 before I passed out of the E-10 market, and since it was only 50 more miles to my destination, that was okay.
So, I drove around a few days then headed back. Stopped to fill the tank and put in 6.9 gallons after 289 miles. Now we are back down to 41 mpg.
Went 297.4 miles and filled again - 5.8 gallons and 51 mpg.
Got home and filled up the next morning on the way to work. 215 miles and 3.2 gallons for 67 mpg.
The numbers are completely bogus. They have to be. 72 and 67 mpg on the interstate with AC? No way.
So, time to recalculate it: 1321 miles, 27 gallons and 48.8 MPG. Guess I should have gone longer between fillups, but wanted to make sure I was running on E-10 fuel.
Start of trip I decided to top off the tank as I had driven back and forth to work a few days and wanted to start from scratch with a completely full tank. So I did.
Got to first fuel stop some 330 miles away and put in 8.5 gallons. That indicates a 39 MPG trip on the interstate with AC.
Second stop was after 181 miles. Put in 2.5 gallons. That is 72 MPG, same interstate, AC on. I did the second stop to fuel up with E-10 before I passed out of the E-10 market, and since it was only 50 more miles to my destination, that was okay.
So, I drove around a few days then headed back. Stopped to fill the tank and put in 6.9 gallons after 289 miles. Now we are back down to 41 mpg.
Went 297.4 miles and filled again - 5.8 gallons and 51 mpg.
Got home and filled up the next morning on the way to work. 215 miles and 3.2 gallons for 67 mpg.
The numbers are completely bogus. They have to be. 72 and 67 mpg on the interstate with AC? No way.
So, time to recalculate it: 1321 miles, 27 gallons and 48.8 MPG. Guess I should have gone longer between fillups, but wanted to make sure I was running on E-10 fuel.