Beat this MPG!

Starting from Sunrise in Mt. Rainier NP, with a dead cold engine, you should be able to get to Renton, 82 miles, before dropping below 99.9. I did last summer. Here is my display at home:

The previous picture was at Enumclaw, 99.9 mpg at 52.5 miles, where the engine was allowed to cool a bit during dinner. Starting with a warm engine and no dinner stop, the final mpg would have been higher.

I estimate that about half of the potential gravity assist was wasted on engine compression braking because the HV battery was full.

 

lol. Nice!

 

how the heck do you guys pull those numbers?

 

Start with Mount rainier area The highest peak in the lower 48 states then simply coast down the hill

droid X

 

All I had to do to achieve this was just plug in the Prius from time to time...



Yes, I cheated by using a PHV model. But still, it's pretty sweet knowing owners will someday routinely see numbers like that.
.

 

I did this (and didn't reset anything at all) when I drove westward through West Bennington, VT. last year. Had the camera always by my side and had to take about 15 pics to get one that wasn't out of focus while I was driving. BTW, don't ever do that while you are driving.

 

Mine is 50.0km/L (117.7mpg) for 188.5km (117.2miles).
I know the mpg display has 99.9 mpg limitation, therefore US drivers can't beat me.
Drivers using L/100km unit can beat me showing less than 2 L/100km for more than 188.5km distance.

Ken@Japan

 

Hey, that’s not fair, I want mountains too... problem is that I have to travel over 1000kms to find hills like that..

I think I choose that John’s way to cheat with PHV..

 

I took advantage of gravity. The start point was Sunrise in Mt. Rainier NP, 5900 feet higher than the end point, though half of that was wasted by engine compression. My 'one gallon' distance for this trip was 92.3 miles.

OP likely started at Paradise in the same Park, probably 5000 higher than his end point.

Wow, this sets a very high bar, and I don't know any road near here that would allow my driving style to compete against it. A more Prius-friendly road elevation profile for my route could get me to only about 100 mpg.

How much elevation change did your trip include? I assume it was not a flat trip, otherwise you would have mentioned it along with Hata_hata's record of 50+ km/L for a full tank in a GenII.

 

You live in LA, come on up to the top of the 2 Freeway, Refill, reset, then go downhill, I live up here, and the downhill run gives 99.9 MPG 95% of the time.
The bitch is while I have good downhill numbers, I have to go return home, and uphill SUCKS gas like a pig!@$^&^%

 

Incredible Number!!!!

I've done 3Lt/100km ONCE over 22 km but 50km/Lt wow ... I need to find a really long downhill run

 

I beat that without cheating. All I had to do was ride my bike (same area).

 

This is a result in normal traffic in Southern Finnish countryside driving the main roads without any "reset the trip" tricks. Quite good fuel economy (4 l/100 km = 58.9 mpg) considering the average speed 80 km/h (50 mph) and the driven distance 262 km (163 miles).

 

Come on! Ken - how did you do it? I want to know how you managed that - what roads? any hills? traffic?

 

I drove with Pulse&Glide.
The environment was very similar to the following record.
World record distance on a single tank for a Prius II - Japan - July 4 - Aug 16, 2006 - CleanMPG Forums

Ken@Japan

 

OK - phew, I feel better - you are (and she did) driving in what essentially is a "test track" - no traffic, no hills, no high speeds, flat road, practically no traffic lights, nice weather...ideal conditions! lucky you!

Where I live, I can simply forget all the above - I am therefore now even more proud when I reach 4L/100km!

I have seen another post in PC that I cannot find anymore of a guy managin about 90mpg, if I remember correctly, using a Prius 3 on a mixed type of route. Where is the trick? you can pulse and glide as much as you like, but going uphill (a long one I mean) needs fuel, and going around, unless you crawl all the way at 50km/h max (impractical in most cases), no way you can reach 90mpg, no way.
Too bad I cannot find the post again - is from early 2009.

 

We will see a downhill after the uphill.
Following is a copy of my post.
-----
At 40mph, a 2% grade downhill will cause a steady speed with no power or braking.
We know 20kW ICE output is the best efficient area, 220g/kWh.
We can go a 6% grade uphill using 20kW ICE power at 40mph.

So, please look for the 6% grade uphill and 2% grade downhill route for the best result.
-----
The driving distance ratio is 1:3 for uphill vs downhill.
If you drive 25mpg on 1 mile uphill, you will see 3 miles downhill consuming no fuel.
The result will be 100mpg.

Ken@Japan