2010 MPG Stats - Post Them Here

Latest fill up today and my personal best just driving back and forth to work, lunch, and daily errands. (mixed highway and in town driving)

471 miles, 10 days, 7.895 gal @ $2.099, 26mph, Calc'd mpg 59.658, MFD 64.4 mpg. Still showed 123 miles DTE but I wanted to lock in a cheap gas price before it went up.

 

I'm curious about this method. It's consistent with my understanding of one of the reasons (safety being another) airliners use a very high throttle setting until they approach cruising altitude.

Has anyone else tried this?

I fill up tomorrow, so will give it a shot for a tank to see what happens. Since I've been pretty consistent around 63 mpg indicated for the last two tanks and my commute is very consistent, I should be able to achieve a relatively apples-to-apples comparison.

 

No, I don't have an EBH. I have to say that the 2010 seems to warm up much faster than the 2006 (although I don't know how it's going to fare in cold weather yet) so I don't think that's where the main problem is. It's the hills and stop lights that are killing me. On this tank, I am working extra hard to bring up my mileage and it seems to be working so far. At least, I am getting between 45 and 53 (on the trip meter) for my short little commutes, rather than 37 - 50.

 

MAN YOU AINT KIDDING!! i just bought gas yesterday at $2.85!!

 

West coast gas prices are rough. I feel for you.

 

ya, gas prices have spiked up but at a sneaky pace all year. not fast enough for immediate notice... but i just now realized that it wont be long before we hit $3 a gallon. the last jump took place AFTER Labor Day, so not all that sure its going down.

last tank was a killer on mileage. took a trip into the Olympics for picnic. involved about 30 miles of easy driving and 25 miles of some VERY unfriendly driving (mileage wise)

but cant argue with the results. great place to spend a hot summer day. the area is about 15º cooler than town. only thing is, with about 15 miles of gravel logging roads which are pretty dusty in the summer, car comes out looking pretty dirty!

also. PROOF that kids cannot feel cold until they get much older. the stream we are in is VERY cold. he is 2½. obviously his cold receptors are not completely developed yet. i got in the river, but only up to my knees which was more than enough!!

 

We've matched your ups and downs until recently. I created a comparison chart here. Note your prices are matching the rise in crude where ours are not at least temporarily.

And the higher the cold goes above the knees, the more "sensitive" it gets! Gorgeous area. I've taken the 4Runner through there several times.

 

hmmm ya, i suppose... however, not sure you can understand my pain...

but then again. my commuter is my Zenn which does cost me less than a buck a week to drive

 

I picked up my Prius V on Monday afternoon, in Wichita, KS and drove it home. I got 50.1 mpg at fillup after tank #1. I broke 60 (61.4mpg), 140miles into tank #3, on my way home from work today. WooHoo! 1300 miles since Monday and 55.4 mpg average. I am SOO happy!

 

Averaging 52.3 MPG (almost 3500 sample) Best so far was 55.0 MPG for 493 miles

My sweet spot driving around Pinellas County (Tampa Bay area) is in the 52MPG range.

2010 Prius II Black

Mr.Bill

 

Here's an edited excerpt from a note I just sent to friend and colleague who is also a hybrid owner.

___

I have had my Prius for a week now, and I can get back to you with a very positive review. I'm not well suited to being a hyper-miler. When I need to get somewhere, I want to get there, and I usually run about 15 Km over the speed limit. Hardly great qualifications for a hybrid owner, but my thinking was that the efficiency of the car might be a bit of a counterbalance for my admittedly bad habits. I should also tell that when I went to see the salesperson who sold my wife her Yaris (Matt Peloquin/Belleville Toyota), I had one agenda on the test drive - "I know this will save me gas, but I want to know if it has the horsepower to let me pass another car quickly". It did.

Here's the surprise. The car is definitely teaching me how to drive. I have found the mileage great anyway, but the numbers that keep popping up give such instantaneous feedback on your driving that I find myself trying to "get a better score". In this respect, I'm sure the new Prius is a hyper-miler's dream.

Even with my very limited understanding of efficient driving, I found myself trying it out today. I had a 80% full battery (Toyota uses a range of between about 30 - 80% full to extend battery life), so I headed into town to go to the post office on the far side of Stirling. Part way along I ended up behind a cement truck, so I decided to follow, and the battery started to turn off the gas engine for a fair bit of the time. When I got to the post office, my battery was almost down to the 30% mark, but my mileage for the last five minutes was 1.0 L per 100 Km (pic attached). Ok ... not a fair test, but it is fun to say that that works out to about 282 mpg Imperial or 235 mpg US.

Then I decided that, even though I had no experience at hypermiling, I would give it a fair try on the way home. Battery starting at 30%, pulse and glide method, only one stop and a couple of times that I pulled over onto the gravel road side to let people pass because I had decided to limit my speed to about 60 Km/h. This run was slightly uphill.

The results over 10 minutes are in the second pic - 3.2 L per 100 Km , 88 mpg Imperial or 73 mpg US.

So, what this tells me is that the Canadian estimates of over 70 mpg are really easily achieveable, even by someone like myself, and I'm completely satisfied that this was the right choice for the car I want to own 9 years from now

 

Last fillup: 49 mpg at the pump (51.3 indicated on the computer). If I were driving it, instaed of the wife, we'd be getting the advertised 50 mpg with no problem. Maybe better. less lead in my foot...

 

The same way in our family. When my wife drives the Prius for the most part she will get 46 - 48 MPG or so. When I drive I always seem to get over 50 MPG, calculated not MFD.

The other day she did suprise me. She got 53.4 MPG calculated and the MFD read 53.4 MPG. First time ever this has happen after nearly 11,000 miles where the MFD matches calculated MPG.

alfon

 

OK, I've owned this car now for about 4 mo and ~7500 mi, so I feel that's enough time for my data and stats to be substantive, if not significant in the strict statistical sense.

So, after 17 fill-ups, here's the thumbnail sketch:

- MPG, calculated: Avg. 54.16 (range 51.42 - 57.67)
- MPG, measured by MFD: Avg 56.23 (range 51.9 - 58.4)
- Average difference: +3.86% (MFD over calculated)
- MPG measured per MFD exceeded MPG calculated 13 of 17 times.
- In these 13 tanks, the average difference was +5.33% (absolute max +9.10%; min +2.13%)
- In the four instances where the calculated exceeded the MFD, the average difference was -0.90% (absolute max -1.27%, min -0.47%)

Possibly relevant but probably coincidental observation: Two of the four occurrences of the calculated MPG exceeding the MPG per MFD were on a long trip at almost exclusively highway speeds. (Anyone else notice a similar phenomenon?) I'd wonder if there was some sort of evaporative loss at work here if not for (a) two other tanks on this trip were heavily skewed in the other direction, and (b) I'd hope these cars' fuel systems are tighter than that.

My conclusion: These data support the hypothesis that the mileage calculated by the car's trip computer is optimistic. This conclusion comports well with others' observations. Given the vast number of folks who are observing the same or similar with their Gen IIIs, my overall conclusion is that the difference we observe is real, not just 'slop' explained away by getting gas at different stations using the 'lucky seven' pump on alternate Wednesdays when the moon is waxing and the prevailing winds differ by more than 10 degrees from their seasonally-adjusted norm. Not that I am complaining about getting an honest 54 mpg on a car barely broken in, but still...

Regards,
Tim

 

with 50 miles on the car

250 mile round trip from northern nj to atlantic city then back.

55-65 highway speeds with cruise control

trip computer ......57.2 mpg

 

My first fill-up.
MFD 52.6
Measured 51.1
I've never had a hybrid before, but I have read the forums and made some small attempts at conservation over the first tank, so I expect my numbers to go down as i slip into old habits....

I'm very pleased.

I am sure I can do better but these results are fine by me. I was a little afraid given all the "I'm only getting 42 mpg" posts. Now I don't have that worry at all. I am confident if I drove normally (for me) I will be above 48. On to power mode...

 

6.1 mi 77.2 cons 17mph


stop and go

flat with some small short inclines

i guess i pay for it tomorrow when the battery needs to recharge

 

My 8th tank:

572.2 miles
MFD 66.5 mpg
Calc'd 62.802 mpg
Avg spd 26 mph

Lifetime avg. 58.0

 

First tank was 51mpg calculated with a calculator.