2010 MPG Stats - Post Them Here

Very good numbers. :cheer2:
If you could drive below 46mph threshold speed, you will see more than that.

Ken@Japan

 

Thanks Ken. Actually I was using a method YOU described in another post: trying to stay in the left or right quarter of the horizontal bar in the screen (avoiding the middle half), while eyeing the vertical iMPG gauge to try to hold it at >100mpg as much as possible.

I have had the Prius only about two weeks. It's difficult to adapt after driving my Insight-I for 5 years. The strategies for mpg for the two cars are so very different: in the Insight I spend a lot of time in lean burn or coasting in neutral with the engine off. I think maximizing mpg in the Prius is more difficult because the computers have more control. I ordered a Scangauge for the Prius, maybe that will help.

I'd like to try <46mph, but I avoid going <50mph on the highway unless no one is behind me. Over the past 5 years, I've found that drivers in the US can manage quite well getting around a vehicle going 50mph in the right lane on a 65mph limit highway (despite being on cruise control and holding cellphones to their ears), but slower than that can get scary, for me at least. Drivers on autobahns in Europe are used to large speed differentials but drivers here are not. Now that gas prices are rising, drivers here seem more tolerant of slower driving.

Is coasting the Gen III Prius downhill in N a useful mpg method? Would doing this risk mechanical damage to the drive system? Or is it better to leave it in D and add just enough accelerator to cancel regeneration? Sorry if these are questions that have been asked many times before.

Thanks for the link to the 46mph limit thread.

 

Just got this car and its already doing 55mpg, does that mean I'll do like 65mpg once its broken in?! :eyebrows:

 

32nd tank 53.6MPG (Calculated) 56.5MPG (Indicated)

Mild/warm temps 50 to 85F. 100% ECO Mode. Four rainy days. No ethanol. Cheated with engine block heater in the morning. No grill block.

Tony

 

Getting 17.5 mpg in my rental Ford Flex on vacation makes me miss my Prius at home.

Of course my Prius can't carry 4 big adults plus 2 kids day in and out either.

 

I took delivery on my 2011 Prius on April 11. After my first fill-up I took the tires up to 44/42, but no other mods. I live about 50 miles from Chicago, so this has been a mix of spring weather. Most trips around 14 miles. So far, after 1,568 miles, I have an overall indicated mpg of 54.1 and an actual measured of 51.7 (4.4% difference).

 

Some room for improvement I think:

We just completed a 1100~ km road trip this weekend. Well into it the displayed mileage settled down around 4.2 liters/100km, then occasionally ticked back-and-forth betwee 4.1~4.2. Nearing our destination the grades were climbing steadily, so much that the numbers went up to 4.4~4.5. By the time we rolled into town I'd manage to push it back down to 4.3.

After a day in that town with some minor running around it was still at 4.3, when I tanked up before starting out on the return leg of our journey. I just did the math and the calculated mileage was 4.6 liters per 100 km, translating to 51.2mpg. Error was 4.26%.

Getting back the mileage is displaying 4.1 right now, a lot more downhill . OTOH, my wife drove the most windy, hilly stretch, and did sort-of inverse Driving With Load, applying gas with gusto on the uphill stretches.

 

that's alot of money you guys are saving

 

33nd tank 53.4MPG (Calculated) 55.7MPG (Indicated)

Warm/Hot temps 60 to 95F. 100% ECO Mode. Two rainy days. No ethanol. Cheated with engine block heater in the morning. No grill block.

Tony

 

On my last tank of gas:

706.1 miles

64.1 mpg

 

My 2010 Prius III already got 82,500 miles on odometer. Best record was achieved about a month ago: 70.5 MPG indicated after driving 46 miles! 66F, no wind, basically flat road, cruised at 55 MPH whenever possible, mostly highway, started from cold engine.

Driving like this at night, I often get 65+. It could be a little better without using cruise, but I enjoy driving with much relax.

I still have my original tires. No doubt those will last beyond 90k miles, not sure about 100k.

 

We bought our Barcelona Red 2010 Prius IV in October 2009 after waiting three months. The wait was worth it! My wife loves to drive it and will not set foot in my 2008 Toyota Tacoma. The gas milage is not as advertized on the sticker; 51/48 mpg. I use my iPhone Gas Cubby to keep fuel economy records and with 20K on the odometer, it calculate the overall gas mileage at 44.33 mpg. This is about 7 mpg less that advertised but twice what my Tacoma gets. For safety reasons I drive with the headlight ALWAYS ON and in the winter the seat heaters are a delight. Maybe that is why we don't get 51 mpg. The Prius is a much better freeway care than I expected.

 

I now have appx. 10000 miles on my 2010 Prius. I have never gottn above 45 mpg no matter how I drive. My average is 42 with the least being 39 and the best 45.

I drove to Phoenix and back and got about 42mpg.

I drive appx 30 miles per day back and forth from work. Not much stop and go traffic.
Agan, about 42 mpg.

Right now here in Oklahoma the temperature is in the 100's everyday. My mileage is averaging about 40 MPG.

I have driven this car in every way described and the bottom line is I get about 42 MPG.

Very disappointing.

 

If you are going to make a statement like that please fill in the details besides the number of miles driven. I.E. you should state the speeds at which you are driving, your tire pressure, headwinds/tailwinds any additional loads you may be carrying, weather conditions etc..

If I drive at 80-85mph my mpg will drop to low 40s but if I drive at 65-70mph then 50mpg is easy to achieve and I drive a GenII which is affected by higher speeds more so than the GenIII.

 

Well, I am not sure if I am "cheating - I have a 4kw Enginer kit" but, I will share.
I finally finished my first full tank of gas in my Prius. I averaged 94.1 mpg! I went 897 miles on 9.5 gallons of gas. I hope to make it in to the 1000 mile per Tank Club with the next one.

 

CR averaged 44 mpg with the Gen III, so I think 40-45 is probably a realistic conservative estimate for a driver who is going to drive a Gen III normally and does not resort to hypermiling techniques.

So far, after 775 miles, my "Trip B" has shown an average of 46.2. This is with 38/36 Tire Pressure, the A/C always on, and gentle to moderate driving. On the highway, I drive between 65-75. Between 65-70, I average 50; at 75, I average about 45 with a slight headwind.

 

34th tank 53.4MPG (Calculated) 55.6MPG (Indicated)

Hot temps 70 to 102F 100% ECO Mode. Two rainy days. Daily AC use. No ethanol. Cheated with engine block heater in the morning. No grill block.

Tony

 

Another few fillups on my 2011 pre-quake Prius. Tires at 44/42, no other mods. Using 10% ethanol, 87 octane gas. 2,726 miles total. Overall, the indicated mgp is 54.3, the actual measured is 51.9 for a 4.3% difference. On individual fillups I have ranged from 49.1 mpg to 53.9 mpg measured actual. Mix of city and highway driving, very few short trips, mostly to work which is 14 miles.

 

Last fillup:
546 miles - 9.5 gal = 57.47 mpg (new best fillup)
90 % highway (rolling hills); 50-55 mph; light traffic

overall average since purchasing car in Sept 2010:
48.78 mpg (20,100 miles on odometer)

 

22,000 miles 2010, lmpg 57.8 , since April have not had a tank under 60 mpg. Mostly highway driving, tanks run about 40 mph average speed. Doing great.