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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
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Replying to: sepco (Aug 16, 2008 6:01 am) 1. Tire inflation to 36 - 38 on all 4. 2. Slow and gradual push of the accelerator pedal, - plateau - , and then slow and gradual release. Repeat the process all over (pulse and glide or you can do pulse and feather). This is how you get >30 MPG in the city. 3. Slow and gradual push of brake pedal for max regen. The regen portion of blended braking works best with gradual pedal motion. 4. With cruise control "on", max MPG is at 47 MPH (35 MPG), it gets 28-30 MPG at 55-57MPH, Fuel consumption drops horribly above 57 mph. 5. Without cruise control, drive as if you are riding a bicycle,,,, accelerating on the downhill to gather momentum for the next uphill or use it for maximum coasting distance. Apply constant (level speed) power even on uphill and allow your car to gradually slow down as you move up. 6. Use of 0-20 toyota synthetic oil. 7. On hilly places, park your car facing downhill. Start your car and immediately shift to neutral (engine will not start) and let it coast as far down as possible before you shift to drive. Good luck |
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Replying to: gtate (Jul 26, 2008 3:15 pm) |
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Dear Fellow HH drivers: I want to focus on only one aspect of "cold" weather mileage drops. This observation is based on 18 mo. (18,000 mi.) of driving a 2007 HH Limited 4WDi. It rarely gets below freezing where I live but, when outside temp is below about 50 deg F., I notice that it takes a lot more driving to get the ICE to shut off and the batteries to take over. Engine cylinder head temperature is already well warmed up but something about cooler weather delays the batteries. What is that "something?" And, here is my point or my question: Is that "something" a sensor different than the engine temp gauge? If so, can that "something" be tricked, modified, or bypassed to permit earlier electric motor activation in cold weather? Anyone? BTW, I have kept track of every gallon of fuel used and every mile driven, and my average has been 28.5 MPG, with about 50-50 highway/city driving. My highway driving has been at 55 MPH and I drive conservatively. Respectfully, Inndriver P.S. What's the latest on aftermarket mods for plug-ins? Any actually installed on HH?
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Replying to: inndriver (Aug 28, 2008 8:41 am) The Catalytic Converter also has to get up to temp, in fact, this is why the engine runs - just to heat up that part.
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| I just completed a fairly long trip, 1033 miles, filled the tank 3 times. My 2008 HH averaged 27.75 mpg for the entire period (calculated actual miles/actual gas). During the trip I finally hit 5000 miles on the odometer and feel that the car is breaking in. This trip included extensive driving in Duluth, MN on steep hills and city driving (including hauling my ex-wife, 22 year old daughter and their dog). | |
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Replying to: stevedebi (Aug 28, 2008 5:00 pm) I am not sure that is correct. I have a block heater on my '08 HH which will bring the temp sensor up to almost operating temperature in mild weather (50 F). The car will back out of my garage on the traction motors and I can then hear the ICE start. It will shut down at stops after running only a minute or two. I do not believe that this is long enough to have brought the cat. up to operating temperature.
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Replying to: monte8 (Sep 04, 2008 8:46 am) I am not sure that is correct. I have a block heater on my '08 HH which will bring the temp sensor up to almost operating temperature in mild weather (50 F). The car will back out of my garage on the traction motors and I can then hear the ICE start. It will shut down at stops after running only a minute or two. I do not believe that this is long enough to have brought the cat. up to operating temperature. " I'm pretty sure on this. All the hybrids have to get that converter up to temp due to pollution controls. The Prius has a hot thermos bottle that stores the engine coolant, which speeds up the process. By using a block heater you are doing essentially the same thing. My FEH runs for about 5 minutes before allowing EV mode - in Socal summer conditions. It really bugs me with my 2008 FEH, which won't run on electric only until everything is warmed up. I sometimes want to move the car only a hundred feet or so - and the engine has to come on... |
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| My wife was always a few mpg's behind me on the TCH but with only a few miles on the 09 HH it was showing 24mpg. Mot bad I thought since winter has hit us early, but today I took it to the dealer on a 28 mile roundtrip to pick up the all weather floor mats. Driving just under the speed limit with some 4 lane, some small town traffic lights and some rural 2 lane hilly driving the computer showed 28.8 mpg. The road was wet with light snow and it was 27F (all things that killed the FE on the TCH). I was pleased! | |
I get 24 to 25 mpg 50-50 city-hwy if I drive normally. I can get upwards of 28 mpg if I baby it. That requires slow starts, slowing to 50 on up hill on freeways, overall a pain to tweek out an extra 3 or 4 mpg. I forget about it now and am happy with 24mpg as my buddy gets less than 18 on his non hybrid HH.
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Replying to: kenrosen (Nov 29, 2008 8:19 pm) |
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