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Hybrid Vehicles Toyota Highlander Hybrid Toyota Highlander Hybrid MPG-Real World Numbers
417 messages, Last post on Oct 16, 2009 at 11:34 AM
You are in the Toyota Highlander Hybrid Forum. Your Host is pf_flyer
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Replying to: akdeedee (Feb 01, 2008 9:36 pm)
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Replying to: febrile1973 (Dec 20, 2007 11:46 am)  and my best was 28mpg  . Our current odometer reading is around 3700 plus miles  . We lived in Bay Area...
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Following up on my previous post (346) - we're creeping out of winter now (hi's in the upper 40's) and the fuel economy is jumping back up - just got 27 mpg after a winter low of 22. I did some experimenting in the last couple months - heater use only accounted for a negligible increase in gas usage. The engine controller tries to keep the temp in the normal range, regardless of heater use or throttle demand. Next winter I'll experiment with using a cold front (block the grille) to see if I can keep the engine warmer... For now, looking forward to seeing how many 30+ tanks I can string together. stats: 07 HH AWD, 20k mi, 30mi commute (mostly hwy, lite traffic). best tank: 32, worst: 22 |
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I live in MInnesota. Noted poor mileage performance of hybrid in cold weather. Does the same thing happen to non hybrids? Would I be better off to forego the hybrid for best environmental impact year around? Joe. |
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columg - dunno bout you, but all of my vehicles get worse mileage in the winter - I live in Iowa, so have much the same weather as you. My Tundra pickup goes from 17-18 mpg summer to 12-14 mpg in the winter. I'm driving an 06 Highlander Hybrid - well broken in with 55k miles, and while it gets as low as 22 mpg in the winter, now that winter has finally broken, I'm getting astounding mileage. I have been getting consistent 27-28 mpg tankfulls; but now that gas prices have become ridiculous, I have started driving slower on trips. That has paid a huge premium; just by slowing to 65 for my Interstate driving, I've noticed that the battery is operating a lot more; I'm also seeing concrete results at the pump - last fill got me 31 (!) mpg. Subsequent refill still came in at 28 - so probably a valid reading. Slow down a touch, and these hybrids are great - the electric motor just doesn't have enough power to deal with the wind resistance at high speeds, and consequently, mileage suffers. |
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All cars suffer from this problem. I live in NE North Dakota. Much colder than Anchorage, AK (I lived there for 3.5 years), but warmer than Barrow, AK (3 years there). My prior car was a 1998 Ford Contour w/2.5L V6. My gas milage dropped about 35% in the coldest part of the winter with the Contour. I saw a similar drop with my '08 HH. Installing a block heater helps a lot. But when it drops to -32 F, it takes time for the engine to warm up to efficient operating temperatures. BTW, I do not let my car sit and run to warm up, except for extreme cold weather (fogged/iced windows are dangerous), so I do not waste gas that way. |
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Replying to: toyohh08 (Mar 17, 2008 2:23 pm) I can't stand to drive my non-hybrid anymore. |
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There are mileages numbers on a 2006 Toyota Highlander Hybrid front wheel drive, as measured by a Scangauge II , calibrated as best I can (enter in actual gas used during fillups). Almost constant driving one person and luggage, from Minneapolis, MN to Oshkosh, WI 30 MPG Summer 27.5 MPG Add a second person and more luggage Going speed limit on major roads Mixed driving (city/highway) 23 to 25 MPG Driving in Minnesotan winters drops to, sometimes slightly higher 25 to 30 MPG Driving in "warmer" months - (closer to 30 MPG if I can "drive for mileage) Driving habits: I monitor the air pressure in the tires; the Scangauge II is in gauge mode most of the time (watch engine RPMs, throttle position, engine load, and timing). Highest even seen - 32 MPG in mixed city/highway To get these numbers, I need to drive, watching ahead for stoplights, slowing down before. Unlike other cars, I gently "ride" the brake, which initially kicks in the re-generative braking. I tend to gradually accelerate, except for unusual traffic conditions. Kicking in the turbo mode of the HH dramatically reduces gas mileage, although useful when merging into heavy highway traffic. Out, Scott |
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| I have had my 2008 highlander hybrid for almost 4 weeks now. (No Nav system or moon roof but has 3rd row seats) First week I got 27mpg city and 26mpg highwy. Next week I got 25/city and 23/highway. Now I am only getting 21-22mpg in the city with warm weather and slow accelerations. Anyone else knows what is going on here? The Toyota mechanic doesn't | |
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Replying to: marshalljay (May 07, 2008 7:38 am) This would be incorrect. The hybrid system on the HH only operates at speeds up to about 40-45 mph. After that it is all ICE. The phenomenon you are describing here applies to ALL vehicles, we are just too impatient to actually GO SLOWER. EVERYONE would see a benefit from doing this. |
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