Short Fuse 14

I noticed an interesting phenomenon the other day! I had just filled up and NEVER top off the tank and very shortly noticed that there was a small gap on the fuel gauge. I only had 8.4 miles since the gas station. I decided to get gas again the next day and, again, just allowed the pump to shut itself off. The receipt showed 1 gallon more fuel dispensed than the car indicated had been consumed. So, every conversation / statement regarding fuel economy is related to yet one more variable; The fuel pump! Edited because I can't spell Just saying,

I am going directly to my dealer to have this DONE! My insurance Co. asks; so discount.

Oh, for crying out loud: This data was calculated after 35 fill-ups in 4 months. 11,264.7 total miles driven... 30K annually. Last reading October 31, 2014. Done (I hope).

Just a little more information: 1. 1 mile at 20 MPH. Dirt road. 2. 4 miles at 70, 60, 50, 45 and 30 MPH. 3. 3 miles at 30, 40 and 55 MPH. 4. 2 miles at 65 MPH. 5. 2 miles at 75 (I usually go 70) MPH. 6. 4 miles at 60 MPH. 7. 2 miles at 75 (70) MPH. 8. 5 miles at 65 MPH. 9. 2 miles at 45, 55 MPH. 10. 3 miles at 65 MPH. 11. 3 miles at 60 MPH. 12. 15 miles at 55 MPH. 13. 4 miles at 55 MPH. 14. 1 mile at 50 MPH. 15. 1 mile at 45 MPH. 16. 3 miles at 40 MPH. That is my commute: 56 miles; turn around and go home! I have two alternate routes; 1 seldom, the other kind of seldom to relax. I love my "Real World" fuel economy.

Lets do this again ( accidently closed window). I populated a quite large spreadsheet to calculate the absolute and average MPG for my 2014 Hybrid; traded in my 2013 eco-boost. I have decided that: 1. I never went downhill all day; I didn't get 53 MPG. 2. I deleted a couple of unrealistic data points; going downhill all day 3. Never had every data point, every time. 4. I drive 56 miles each way, every work day: 75% Highway and 25% rural/city. Fuel economy only allows for 80/20 so isn't valid from the start. 5. My calculations include an 8 day, 6 state road trip. 6. I have remote start; specifically for the hot summer months in SE Texas so that my car is cool in July, August and September; three of this four month study. 7. My worst MPG was 33.55 MPG ... and my best was 44.97 MPG. 8. When I exclude my best and worst (often done) I average 39.783 MPG actual and 40.537 MPG calculated (By the car). This is 95.55% accuracy. O.K. 9. I conclude that this is a very good car! Calculated MPG 10. My 1999 Toyota 4Runner gets 22 MPG, My 2002 Audi TT Roadster got 27 MPG (Premium) and my 2013 Ford Fusion Eco-Boost got 32 MPG. Winning! 11. MOST IMPORTANT: If there is traffic, my gas mileage goes UP! Disclaimer: I don't live in LA... Too much traffic drains the battery and kills fuel economy. 12. Almost all of my commute is uneventful; however, I go mostly downhill to work and uphill home. Downhill in the early AM and home in the Afternoon. More traffic uphill and home? Better than a test track for fuel efficiency estimates!