Last post on Jul 28, 2013 at 8:39 AM
You are in the Toyota Prius
What is this discussion about?
Toyota Prius, Hybrid Cars
#3585 of 7508 Re: heavy rain & the Prius
Jan 16, 2004 (9:27 am)
Sorry, I don't have any 2004 rain data to share. It's the wrong season for that. But I can point out facts about my 2001 in the rain.
Humidity is the engine friend. That moisture sucked into the cylinders helps with efficiency when super-heated. So you get more bang for your buck with piston power in the rain. The problem was the windows would steam up, so you'd have to run the defroster. In the 2001, that meant the engine would remain running when you stopped resulting in a MPG loss. But with the 2004, the defroster is powered by the battery-pack instead. So I bet I'll enjoy very pleasing MPG in the rain... when it finally warms up.
Handling is no big deal, just like any other Toyota car.
The HID lights should be an obvious plus at night in the rain. They are with the snow.
#3586 of 7508 Re: mpg in california
Jan 16, 2004 (9:28 am)
The first tank of gas was 42MPG. With a heavier foot it's down to 38. All by the display. Most trips are 10 miles one-way, mixed highway/local with 800ft elevation change. It's in San Jose.
It's not too bad. My '97 Taurus got 19MPG; '02 Corolla (3-speed auto) got 25. The elevation kills MPG.
Toyota did a good job to make hard plastic look ok. The places you touch are still soft. Granted, same or less amount of money can buy a Camry with nicer interior. "Green" does cost extra. (I would say $3k more compared to Scion. Did your son check that?) Prius is fun to drive compared to Camry or Taurus. Hatch back can fit a lot of stuff. People hauling is between Camry and Corolla.
By the way, people were talking about "2 cy" engine. What's that? Prius has 4-cylinder, 4-stroke, Atkinson cycle engine. The following link explained it very well:
#3587 of 7508 Blue battery gauge and 75 mph
Jan 16, 2004 (9:29 am)
My battery gauge is almost always in the blue - usually in the same range of from two bars from the top to one bar below the half. Only once has it dipped to the lowest level when I was running on electric only through a paid drive-thru Christmas light display. At that time, the battery had to be recharged using the ICE.
As far as going green - It has charged up to green several times (showing all green, but missing one bar at the top), but only stays green for a very short time before dropping back to blue.
On my test drive I got the car up to 75 mph going up a steep incline on I-70 in Colorado. The car did fine, but gas mileage will definitely take a hit driving this fast. I have been trying to stay below 60 mph in my new car until the car is "broken in". On the highway this is not an easy thing to do.
#3588 of 7508 RE: Pros and Cons/ Stark interior
Jan 16, 2004 (9:36 am)
talleyid, thanks again. I tend to drive somewhere between 65-72 and most of my miles are rural interstate. However, my climate will be close to yours as i live in western Illinois, so it gives me a good comparison.
May I ask where you purchased your Prius? Were you satisfied with the dealer, your treatment, and the price? St. Charles is about 1 1/2 hours for me, so I could easily car shop in that area.
"Also, what do you guys think about all that hard plastic in the interior? My first impression was that it was "stark" (to be polite)."
I like the "stark" interior. It makes the inside look clean and finished. It's that whole "form follows function" thing. The plastic could be more attractive, but the lines of the interior are superb.
#3589 of 7508 MPG in Southern CA
Jan 16, 2004 (10:00 am)
I drive back and forth 30 miles each way to work in the LA area. I have been averaging 47 mpg on the dashboard display which I am very happy with. I have about 2500 miles on my Prius. Peggylou, I have one 15 yr old kid (with her best friend glued to her so it may as well be two) and one dog. There is plenty of room in the car and cargo space for just about anything.
Jan 16, 2004 (11:14 am)
> or IF IT IS ACTUALLY A PROBLEM!
You are right. I don't know with 100% certainty. I only know what I read here. It is up to Toyota to perform the scientific testing and give up concrete results. I can only suspect causes. But I am after the truth.
> Keeping the charge at that level is the best
> possible thing Toyota could do. Not
> overcharging or deep-discharging yields the
> longest possible battery-pack life.
I agree, but that is not the point. The point is about reduced battery efficiency in severe cold weather which translates into reduced MPG. If you have to please reread what the person with a Ph.D. in chemistry says about it and what can be done about it: http://chemistry.about.com/library/weekly/blbattery.htm
> Heavy stop & slow city driving will drop the
> MPG regardless of temperature. Just ask those
> getting low efficiency right now down in LA,
> where it's quite warm. Then ask how I'm maintaining
> a 43 MPG average here in Minnesota, where it's rather
> cold right now.
I don't agree. I recall post# 2167. I will repost part of it here: <start> I went from Fresno to Orange County, in Cailf. I set the cruise 65,and it was 70 degrees outside and I had about 1 hour of stop and go traffic in down town LA. I went 290 miles. It took just 5.54 gals. That's 52.3 MPG.The 04 Prius got the best MPG in stop and go traffic. <end> This clearly states the Prius got the best MPG in stop and go traffic. Therefore, greater than the 52.3 MPG average for the entire trip. And you said your's is 43? Your claim is false.
#3591 of 7508 quote from www.fueleconomy.gov (EPA and DOE)
Jan 16, 2004 (11:32 am)
"The test used to determine the city fuel economy estimate simulates an 11-mile, stop-and-go trip with an average speed of 20 miles per hour (mph). The trip takes 31 minutes and has 23 stops. About 18 percent of the time is spent idling, as in waiting at traffic lights or in rush hour traffic. The maximum speed is 56 mph. The engine is initially started after being parked overnight. Vehicles are tested at 68 F to 86 F ambient temperature."
EPA ran that course in their lab on 04 Prius and marked down the result by 10% for the published espitmate of 60 MPG.
The city MPG's we have seen reported here are nearly all in the 40's, about 25% to 33% lower than the estimate on average. My city and highway MPG's of a conventional car (93 Eagle Summit Wagon, same as Mitsubishi Expo LRV) were about 10% better than EPA estimates in summer when the car was new and 10 years old. These MPG's precisely matched their lab numbers.
A Toyota Rep at 1-800-331-4331 told me on December 17, 2003 that their engineers were working on it and there would be an answer by mid Jan 04. But there was not a published solution so far, another Rep told me yesterday. "I would be concerned if it was my car", the Rep said.
We, true Prius owners and possibly dealer's agents here, need to face the issue.
Jan 16, 2004 (1:32 pm)
> And you said your's is 43? Your claim is false.
That's not what I was referring to at all. It was a LA owner on the Yahoo forum, contributing far more detail then what's available here, hence the confusion. And now, I don't even remember what the heck the original topic was anymore. Apparently, summarizing doesn't work either.
Plain & Simple: stop & slow sub-30 MPH traffic is the worst. 70+ MPH highway cruising is nasty. 35 to 55 MPH suburb driving with occasional stops is the best. Cold weather lowers efficiency (and I have 4 years of winter data to clearly showing that).
#3593 of 7508 So the definition of City Mileage is not Accurate!!
Jan 16, 2004 (2:15 pm)
Toyota should re-define what they mean by City and Highway driving...John stated that Suburb driving (35-55) with occasional stops is best...
I would define CITY driving as 0-35mph with many stops or holds (stop lights as well as heavy traffic in which you must stop regardless of lights).
HIGHWAY would mean cruise speeds of 65-70 mph with minimal or no stops.
So the Pruis in heavy traffic behaves the same as any all combustion vehicle...and you don't get the opportunity to regenerate in stopped traffic (all power plants now equal at this point) ...regeneration only occurs during the braking...grabbing the kinetic energy during the stopping process, once you stop this energy of motion is gone ... so is the regeneration!
Jan 16, 2004 (2:30 pm)
> 35 to 55 MPH suburb driving
Except I made a mistake... it's actually 35 to 50.
55 MPH is still better than 60 though.
Sorry about that.