max MPG without EBH or other mods

[psikot]

i just passed 1,000 miles with a max tank of 400 miles at 45 MPG. what is the max MPG without heaters or modifications? post best MPG for a "stock prius".

[efusco]

For who, what routes, what speeds, what terrain, what temps?
The Marathoners got ~115mpg on a stock Prius during the marathon.
I routinely averaged 54mpg/year without mods, up to ~60/yr with the EBH use.

But none of that means anything for you. It depends upon a great many variables. 45 isn't bad, but you've told us nothing about what kind of driving you do.

Cleanmpg.com has a nice list of various mpgs as does greenhybrid.com so you can see the bell-shaped curve with extremes and averages/means.

[Danny Hamilton]

<div class='quotetop'>QUOTE(psikot @ Oct 9 2007, 12:03 PM) [snapback]523156[/snapback]</div>

i just passed 1,000 miles with a max tank of 400 miles at 45 MPG. what is the max MPG without heaters or modifications? post best MPG for a "stock prius".
[/b]

Hmm, define "stock prius" and "without modifications".

Does it matter which feature package?
If the windows are tinted is it no longer "stock"?
What if I run the tires at their sidewall rating?
Does removing the trim rings mean it isn't "stock"?
If I change the SKS unlock to unlock all doors is it still "stock"?
How about if I turn off the seatbelt beep or the backup beep?

Are you looking for lifetime MPG, tank MPG, or trip MPG?

Do you care about distance traveled?

So many more questions.

I had an EBH installed about 3 weeks ago. If you click the link in my sig, you can see that prior to installing the EBH my best tank was 84 MPG. My average was 55.5 MPG.

Useless information I can add: My best trip was 99.9 MPG.

[paulrubin]

Most of my driving is a commute I make from central NJ to Brooklyn. There's some highway, some residential, varying amounts of traffic on both totaling about 85 miles a day and I've made the trip about 20 times so far in a 2007 package 5. No modifications whatsoever yet. Not even extra air in the tires.

The commute is typically 52mpg to 55mpg though I have hit 58 and 60 on 2 of the 40 individual trips and was around 50 and 51 on 3 or 4 occasions. Worst commutes are the under 5 minute variety with numbers closer to mid 30's to low 40's.

[chuck kershner]

My best with an '06 Prius at around 11,500 was 52.2 mpg over 670 miles (about 12 gallons) mainly on 4-lane thruway in New York, Mass., and Conn., posted speed limits or a few miles above. No quick starts/stops or foot-to-the-floor passing. Temps in uppers 70s, low 80s, little headwind, not much steep up/down roadways. No mods. I just get in and drive. This is a wonderful vehicle to simply enjoy without obsessing over mileage per gallon and other non-essential issues in life and living.

[moxiequz]

My average MPG "right out of the box" on my Prius was around 48 MPG.

During the summer months it'd keep at 50 MPG, even with the air conditioner running (on the lowest setting).

I've now hit - for the first time - 53 MPG. No mods to the Prius, no overinflated tires, no blood sacrifices to the Mileage Gods - just pulse & glides, moderate temperatures and mileage friendly commute).

[patsparks]

Mine is as close to stock as s**t is to swearing and I get 4.3L/100km (54.70mpg) across metropolitan Adelaide with a daily commute of 34 km each way and 40 sets of traffic lights to negotiate each way.
Wheel trims off, tyres at 42/40 sheepskin seat covers, shark fin antenna, mudflaps and cheap floor mats.
On a trip at highway speeds of 110km/h and passing at up to 160km/h I averaged 5.2L/100km (45.23mpg)

[psikot]

i cant afford the EBH, so the idea was, all things being equal is it possible to have 80, 70 or 60 mpg in the real world conditions of San Jose, CA.




<div class='quotetop'>QUOTE(Paul R @ Oct 9 2007, 12:38 PM) [snapback]523174[/snapback]</div>

Most of my driving is a commute I make from central NJ to Brooklyn. There's some highway, some residential, varying amounts of traffic on both totaling about 85 miles a day and I've made the trip about 20 times so far in a 2007 package 5. No modifications whatsoever yet. Not even extra air in the tires.

The commute is typically 52mpg to 55mpg though I have hit 58 and 60 on 2 of the 40 individual trips and was around 50 and 51 on 3 or 4 occasions. Worst commutes are the under 5 minute variety with numbers closer to mid 30's to low 40's.
[/b]

how often is it to get 60mpg on 1 tank, no EBH

[brick]

I'm hanging on to 68mpg right now without an EBH. 60 on the highway isn't too tough to achieve by keeping speeds down. 45mpg either means you're running really short trips or you need to spend some more time letting the car break in and learning how to take advantage of a few tricks in your daily driving.

[efusco]

<div class='quotetop'>QUOTE(psikot @ Oct 11 2007, 05:30 PM) [snapback]524260[/snapback]</div>

i cant afford the EBH, so the idea was, all things being equal is it possible to have 80, 70 or 60 mpg in the real world conditions of San Jose, CA.
how often is it to get 60mpg on 1 tank, no EBH [/b]

I'm confused....nothing new.
But, do you have a Prius or not?
I not then if you can't afford a $40 EBH how on earth do you hope to be able to afford a ~$25k car? The EBH is barely more than a tank of gas...I estimate with my EBH that I saved ~27 gallons of gas last year...around $75...so it more than paid for itself.

Have you looked at the stickies on this Fuel Economy forum? Whether you can get 60mpg or 70mpg without an EBH is highly dependent upon many factors, none of which have you revealed to us...though the info about where you live help a little.

How far is your commute? How much of it is freeway speed? How much stop & go? How much rural? Are you amenable to changing your driving habits and staying at or a little below the limit? Are you willing to anticipate and roll up to stops instead of braking late as you approach it? Are you willing to increase your following distance? Are you willing to put higher pressure in the tires than the manufacturer recommends? How many extra short trips do you end up doing in a given week?

There are so many variables and your mpg can vary by 15mpg above or below the 55mpg mark depending upon where your habits place you.