My FEH must like me, first 50+ mpg trip.
#1
My FEH must like me, first 50+ mpg trip.
So I went golfing this morning in south Vegas up in the mountians. Elevation difference is probably about 1000 feet from my house to the course and I ran the 11 miles to the course in 30ish mpg... I knew I would have a much higher MPG coming home but I didn't expect this high.
Instead of going back home I had to run into work so I drove the 30 miles (20ish on Interstate to work). Coming back down the hill at about 6 miles into the trip I was at MAX on the MPG indicator. I got on the Interstate and set the cruise at 55. I hit a little traffic for about a 1.5 mile strech which allowed me to run without the ICE on... When I got off the Interstate and had about 3.5 miles left I was at 50.3 mpg... I took it easy into work on a 45 miles per hour street before getting on the AFB and running the last .75 miles into work in EM.
End result a 29.7 mile trip and FE of 52.3 mpg... Unbeliveable... Car has 2550 miles on it, so still breaking it in... I can't think it'd get better than that though.
Instead of going back home I had to run into work so I drove the 30 miles (20ish on Interstate to work). Coming back down the hill at about 6 miles into the trip I was at MAX on the MPG indicator. I got on the Interstate and set the cruise at 55. I hit a little traffic for about a 1.5 mile strech which allowed me to run without the ICE on... When I got off the Interstate and had about 3.5 miles left I was at 50.3 mpg... I took it easy into work on a 45 miles per hour street before getting on the AFB and running the last .75 miles into work in EM.
End result a 29.7 mile trip and FE of 52.3 mpg... Unbeliveable... Car has 2550 miles on it, so still breaking it in... I can't think it'd get better than that though.
#2
Re: My FEH must like me, first 50+ mpg trip.
So I went golfing this morning in south Vegas up in the mountians. Elevation difference is probably about 1000 feet from my house to the course and I ran the 11 miles to the course in 30ish mpg... I knew I would have a much higher MPG coming home but I didn't expect this high.
Instead of going back home I had to run into work so I drove the 30 miles (20ish on Interstate to work). Coming back down the hill at about 6 miles into the trip I was at MAX on the MPG indicator. I got on the Interstate and set the cruise at 55. I hit a little traffic for about a 1.5 mile strech which allowed me to run without the ICE on... When I got off the Interstate and had about 3.5 miles left I was at 50.3 mpg... I took it easy into work on a 45 miles per hour street before getting on the AFB and running the last .75 miles into work in EM.
End result a 29.7 mile trip and FE of 52.3 mpg... Unbeliveable... Car has 2550 miles on it, so still breaking it in... I can't think it'd get better than that though.
Instead of going back home I had to run into work so I drove the 30 miles (20ish on Interstate to work). Coming back down the hill at about 6 miles into the trip I was at MAX on the MPG indicator. I got on the Interstate and set the cruise at 55. I hit a little traffic for about a 1.5 mile strech which allowed me to run without the ICE on... When I got off the Interstate and had about 3.5 miles left I was at 50.3 mpg... I took it easy into work on a 45 miles per hour street before getting on the AFB and running the last .75 miles into work in EM.
End result a 29.7 mile trip and FE of 52.3 mpg... Unbeliveable... Car has 2550 miles on it, so still breaking it in... I can't think it'd get better than that though.
#3
Re: My FEH must like me, first 50+ mpg trip.
I did not fill up. I reset my NAV MPG monitor and my trip odometer before the trip. I write down and analize each trip I take in the car (and track on an excel spreadsheet to learn how to drive better)...
#4
Re: My FEH must like me, first 50+ mpg trip.
GaryG
#5
working on second 50+ MPG tank
Good job for such a new car ( and presumably, FEH driver! ).
I had ONE tank over 50 MPG but that involved mountains and thin air.
I'm trying for my first 50+ tank on the flat lands right now.
After having my MTE climb to the mid-600's I hope the next will be 700+.
I've had to take some "extreme" measures, like actually dis-connecting the A/C compressor. In July, I found I could drive with the HV Tav at 110'F without a loss in MPG performance. The max amps of battery output decline above 95'F but I never need max amps anyhow when "hypermiling" so this was a non-issue.
You get about the same battery performance at 110'F internal temperature, as you do at about 45 degrees. So not a big deal. And with the A/C disconnected, there was not the engine drag. I had no lights or visible warnings doing this. I actually ( on an impulse buy in the supermarket ) got 14 pounds of dry ice and spread it ON TOP of the battery, and under the carpet, and it didn't do a thing. The battery Tav didn't change at all after 1 hour. But, the battery went up to about 110'F on a 95'F day and didn't go past that... it kind of leveled off there without A/C.
I don't recommend doing this, but my A/C lost the freon, and I didn't have time to fix it, and I didn't want the A/C compressor running needlessly. The good news is... the HV battery does pretty good without it in most cases. Less than "optimal" but not bad.
I of course had to do key-off at stoplights, the car won't shut down on it's own with a hot battery. That's the biggest negative right there. ( The car thinks the A/C is running, but there is no feedback to tell the car I had it disconnected. ) -John
I had ONE tank over 50 MPG but that involved mountains and thin air.
I'm trying for my first 50+ tank on the flat lands right now.
After having my MTE climb to the mid-600's I hope the next will be 700+.
I've had to take some "extreme" measures, like actually dis-connecting the A/C compressor. In July, I found I could drive with the HV Tav at 110'F without a loss in MPG performance. The max amps of battery output decline above 95'F but I never need max amps anyhow when "hypermiling" so this was a non-issue.
You get about the same battery performance at 110'F internal temperature, as you do at about 45 degrees. So not a big deal. And with the A/C disconnected, there was not the engine drag. I had no lights or visible warnings doing this. I actually ( on an impulse buy in the supermarket ) got 14 pounds of dry ice and spread it ON TOP of the battery, and under the carpet, and it didn't do a thing. The battery Tav didn't change at all after 1 hour. But, the battery went up to about 110'F on a 95'F day and didn't go past that... it kind of leveled off there without A/C.
I don't recommend doing this, but my A/C lost the freon, and I didn't have time to fix it, and I didn't want the A/C compressor running needlessly. The good news is... the HV battery does pretty good without it in most cases. Less than "optimal" but not bad.
I of course had to do key-off at stoplights, the car won't shut down on it's own with a hot battery. That's the biggest negative right there. ( The car thinks the A/C is running, but there is no feedback to tell the car I had it disconnected. ) -John
#8
Re: working on second 50+ MPG tank
After burning up half a tank, I still had 370 MTE so things were looking pretty good...
I took her down to about 100 MTE and then filled her up.
Voila! My personal best, but 24 miles short of my goal...
Maybe next time? I will admit... this trying to shoot for 700 MTE is getting a little tedious, tiresome... and a bit stressful... it was fun for the first 3 years.....
Oh yeah.... I'm using E10, which is all I can get in Colorado. Does this count as a 700 tank if it were pure gas???
-John
#9
Re: My FEH must like me, first 50+ mpg trip.
P.S. to the last post:
676 MTE = 49.3 MPG based on 13.7 gallons which is what the computer uses.
It will take 51 MPG to break 700 MTE. Wish me luck.
676 MTE = 49.3 MPG based on 13.7 gallons which is what the computer uses.
It will take 51 MPG to break 700 MTE. Wish me luck.
#10
Re: working on second 50+ MPG tank
It has been an interesting and educational experience reading your threads in this site. Good luck in breaking the "700" barrier. I can't even think of how and where one can drive (without endangering themselves) on public roads to obtain this type of mileage.