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Toyota Highlander Hybrid MPG-Real World Numbers

417 messages,  Last post on Oct 16, 2009 at 11:34 AM

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What is this discussion about? Toyota Highlander Hybrid, Fuel Efficiency (MPG), SUV


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#61 of 417
Re: MPG UPDATE [phoebeisis] by sbgirl
Jul 08, 2005 (12:56 pm)
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Replying to: phoebeisis (Jul 01, 2005 3:49 pm)

Well, with my 3rd fill up it was 357 miles for 15 gallons = 23.8 mpg. I'm still trying to nail down on how I can make it switch to electric more often.
 
It seems like if I start off strong then ease off until it switches to electric and then keep a light foot on the gas pedal rather then slowly build up speed which will keep the gas going for a longer amount of time. Anybody have any other ideas?
#62 of 417
Re: MPG UPDATE [sbgirl] by bouvsrus
Jul 08, 2005 (5:58 pm)
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Replying to: sbgirl (Jul 08, 2005 12:56 pm)

Glad to reply; my family thinks I'm nuts because of my interest (they say obsession) with figuring out how to maximize mpg. Its my wife's car but I'm enjoying myself. Here are my best tips so far and would be great to hear from others.
 
First, I've read here and it appears to be true that passing 1000 miles and upwards will lead to gradual improvement in mpg. At 1300 miles that has been the case. (I've posted numbers in earlier posts so won't repeat here).
 
Second, take the car out on country roads where you are likely to encounter no traffic. I went out for an hour in rural area - - no one around, no cars behind you, you can vary speed, experiment. While not real world conditions its a good way to experiment and figure out how to maximize the electrice motor's use.
 
Third, I've found gradual acceleration is best as quick acceleration from start will always use more gas, hybrid or regular car. Yes, I can see where it would feel like you get to the electric motor quicker when you ease off the gas once you are at speed but still using more gas on fast start I suspect.
 
Fourth, maintain steady speed. Its hard to do in city driving, but on country roads I was amazed that I could hold at 40 mph and stay on electric for miles.
 
Last, cruise control. Early frustration with my seeming inability to find the "sweet spot" for maximizing the electric motor, I noticed on highway with cruise control on that the car itself seems to maximize electric (and better than my attempts at it manually/my foot). I normally never use cruise control, but perhaps a good reason to start.
 
By the way...on the country roads driving solely for purpose of hitting good mpg #'s, with occasional stop signs and slowing for turns, I hit 31 mpg over about 75 miles. Not real world conditions but nice to know the car can do that well.
 
One downside to trying to maximize mpg...it feels really, really good hitting the gas and feeling our HH take off like a shot. Its also amazing (although not gas efficient) zipping up entrance ramps and changing lanes in highway traffic. The HH is so responsive and so much torque. Something for everyone.
 
It would be great to hit closer to 30 than 25-27 mpg but our Expedition avg. 10 mpg (satisfaction depends in part, I think, on where you start from) and if I had to choose between 2-4 mpg vs. 6 cyl and plenty of power, for me, the ability to step on the gas and have the car move when you want outweighs chance for even better mileage.
 
Good luck.
#63 of 417
Re: MPG UPDATE [sbgirl] by darmock
Jul 10, 2005 (7:28 am)
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Replying to: sbgirl (Jul 08, 2005 12:56 pm)

My experience directly supports bouvrus in post 943. My mpg has improved as I have tried to be more aware of the terrain and generally not to be in a hurry, either to start or stop. Cruise control seems to be a good tool. I have found the "current MPG" gauge in the multi-information display directly above the steering wheel to be the most useful. I try to maximize the instantaneous mpg in that display. I had been using the gas/elect 'arrow' icons there but found that to be less helpful. I have 1006 miles in and have gotten 28.9, 30.4 and 32.5 calculated MPG for each of the three tanks of gas I have used. The first tank was from the dealer. The second had a lot of highway miles and the third was about 25% highway. Interestingly, the NAV screen is reporting 30.5 cumlative mpg over the 1000 miles. This is exactly the same result I get from calculating the mpg myself. Now that I believe the computer (I think), I can reset the NAV and get more immediate feedback on how to best drive the HH for max MPG.
 
Toyota could really help this effort by providing more data and readouts, perhaps in the area occupied by the power meter.
 
I have an AWD limited, a light foot, use AC very sparingly.
 
Good luck.
#64 of 417
Re: MPG UPDATE [bouvsrus] by sbgirl
Jul 11, 2005 (9:16 am)
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Replying to: bouvsrus (Jul 08, 2005 5:58 pm)

Well, I just passed 1000 miles so I'll keep an eye on it. Thanks for the tips, I've been following some of them since I drove it home. I'll have to try taking it out on the back roads and see what I can learn.
#65 of 417
Mileage Feedback by bouvsrus
Jul 04, 2005 (7:26 am)
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I just finished our 3rd tank of gas and have some actual and car-calucluated
 
HH Ltd AWD, w/NAV
 
Calculator in car shows 25.5 mpg on the 330 miles driven on this tank.
Actual calculated: 24.1 mpg
 
Prior tank, got about 24.5 and car's calculator and my calculations came out about the same. Total of 1st three fill ups (with amount pumped ranging from 12-15 gallon on each fill-up) and drove on these three tanks a total of 1015 miles.
 
Steve
 
Driving was mostly city/suburbs, not a lot of heavy traffic and about 15% hwy only.
#66 of 417
Fuel Gauge....Accurate ??!!?? by ulev
Jul 06, 2005 (4:32 am)
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I just filled my tank, just to track my MPG what I thought, from looking at the fuel gauge, was 1/2 full...
I pumped in 9.453 Gal. which scewed my MPG which 222.3 miles gave me 23.516 MPG ????
HECK, my 1990 4 runner 3.0 V6 (which I still have) gave consistent 22 MPG avg...
The manual states that the HH has 17.2 Gal tank, so theoretically 1/2 tank should be 8.6 Gal. and an MPG of 25.84 MPG.
 
I am running both Odo A + B till I run on fumes to check out 'true' mileage figures...
#67 of 417
Re: Fuel Gauge....Accurate ??!!?? [ulev] by nimhrod
Jul 06, 2005 (6:25 am)
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Replying to: ulev (Jul 06, 2005 4:32 am)

Ulev,
 
Unfortunately, most gas gauges are not calibrated. Meaning, that 1/2 tank on the gauge does not translate into 1/2 tank. That's why some cars seems to stay on "Full" for an eternity, then take a nose dive to the bottom of the pool after hitting 1/2 tank.
 
I'm sure some Detroit marketing genius came up with that idea.
 
Nimhrod
#68 of 417
First Full Fillup... by ulev
Jul 16, 2005 (5:45 am)
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Well I finally filled up the tank, in of all places, the near west side of Chicago... $2.759/gal Reg...
 
As I was INTENT on running on fumes, before I filled up in order to assess 'true' gas mileage.
 
I noted that at the 'bottom' of the fuel indicator, with low gas light glowing, I still had approx. 2+ gallons left in reserve, or approx 50 miles.
 
I 'filled up' with 15.006 gals. and drove 392.5 miles...for an MPG of 26.156 !
This was mostly highway driving 60-70 mph, with the air on almost constantly during this 90+ period.
 
I think that is pretty da_n good ! for the first tank full and encountered conditions.
 
My only gripe, is that I have a 'normal' (15 gal) range of 400 miles...same as with my Tundra, although I am getting approx 10 mpg MORE.
 
But my fill-ups are still the same, in terms of frequency...
 
Technically, if I ran the 17.2 gal tank 'dry' I would have 449.88 total miles driven
VS. my Tundra 16.8 mpg 26.4 gals = 443.52 miles OR 6.36 miles LESS than the HH....
 
I was, frankly, hoping for more range...maybe it will improve after it hits the 1K mark, but I don't think it will do so by much more.
 
In favor of the HH, it does have more 'horsepower' than my Tundra, is much smoother with the CVT and is quicker than the 4.7 L V-8...
#69 of 417
Re: First Full Fillup... [ulev] by spencer327
Jul 17, 2005 (9:08 am)
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Replying to: ulev (Jul 16, 2005 5:45 am)

Hi Ulev
Thanks for the info.
My HL(no H) regularly gets 25-26 MPG on the hwy between NY and Fla.However around town gets 14 to 15. My thought is if you drive mostly on hwys why spend the extra money. However around town when the battery really get used is the forte of these vehicles. Do you have a MPG # with mostly around town driving. I think that would convince me the extra money, complexity is worth it.
Thanks
#70 of 417
Re: First Full Fillup... [spencer327] by tomslyck
Jul 18, 2005 (8:32 pm)
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Replying to: spencer327 (Jul 17, 2005 9:08 am)

We're almost to 3,000 miles. My wife is a teacher and she was driving it for a few weeks on her 90 mile daily commute. The freeway went pretty fast on her morning drive but the evening commute was a 90 minute grind. She was getting 28.7 mpg. When her school year ended, I got the HH for my 9 mile stop-and-go daily commute. I had been getting 12 mpg in our Envoy, and I'm now getting 25.3 mpg in the HH. The mileage gets better after it warms up.

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