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Discussion Starter #1
Hi,

I just got my 2011 Insight this past weekend and was hoping an experienced Insight owner could give some MPG driving tips. I generally keep the Eco Assist green as much as possible and always drive with the Econ button enabled. Most of my commute is on i495 on Long Island and I use cruise control to keep it at 55 for most of the way or slower depending on traffic. Coming home it's bumper to bumper sometimes so I exit and drive on service roads to escape the traffic however the service roads have stop lights and is very hilly at times.

I'm not sure what provides for better MPG, the bumper to bumper traffic or hilly service road and stop lights.

Also, at stop signs how do I disable the auto shut off when I'm just briefly stopping and then going as opposed to sitting at a light? I figure for stop signs it probably wastes fuel for the engine to stop/start for such a brief moment.

Thanks
 

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55 on the LIE ? now that's dangerous !

in my experience the I2 shines in highway cruising v. stop & go

anticipatory braking also yields big dividends but takes discipline
 

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When it comes to stop n going, you need to coast/ride the brake as much as possible. I find highway too yields the best mpg. The secret for either is to conserve energy, accelerate as slow as possible and include a lot of coasting.
 

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not a hypermiler

Have owned 3 honda honda hybrids , 1st Gen 03, Civic 09, 2nd Gen 10, and all have the same characteristics. Staying conservative but not radical , here are some tips.

You cant overcome air friction and displacement without cost. Anything over 60mph will eventually cost you.

Cruise control will only save you if it is on fairly level ground for most of the trip.

Getting off the gas early and coasting to stop signs and lights , pays off in consuption and regen.

Windows open does not pay off at speed. AC at highest you can tolerate will.

Higher tire pressure = mpg, although slight, and could cost you tire wear , rotating is the key.

Constant pedal not constant speed (within reason) is the key on hilly interstate driving , the truckers know what they are doing.

Drafting can be dangerous and always leads to the demise of your paint job
 

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not a hypermiler 2

Dont think you are right about the auto stop. If car is warmed up, IMA spins up engine to idle speed almost instantaneously so no real cost there- no fuel flow is usually better than any fuel flow.

Stop and go always is worse. You cant overcome physics. If you are constantly trying to accelerate mass over and over again no amount of auto stop will overcome the cost. High speed costs as well. Logic and 250K of hybrid experience says steady 50mph on back roads with few stops trumps all.

Scott
 

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Discussion Starter #6
Thanks for the tips. I read through other posts and had some more questions.

I read on other posts that some people say the power curve of the engine gives better gas milage at higher speeds. I've only had my car for three days now so I'm still in the break in period and only driving up to 55mph. Has anyone else found that speeds on the highway above 55mph yields better MPG?

For hills I thought I would burn less gas by taking it out of cruise control as I started up the hill and letting my speed slowly reduce and then slowly picking up speed again going down the other side of the hill. Does this work out better or does letting cruise control maintain the speed up the hill work out better?

I also read on other posts that some people feel disengaging the Econ mode when setting cruise control will produce better gas milage. Currently I have the Econ mode on at all times with or without cruise control and no matter the speed.
 

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Shuttlecraft, I think the use of cruise control on hills is not in the best interest of fuel mileage. I am new to hybrids also, only had my Insight base 3 weeks so far, and found that my foot on the pedal gives me better mileage then the cruise control can. I very rarely use the after market cruise that I had to have installed thinking I would drive this car like any other, but was I wrong. My advise is anticipate stops and lights as much as possible, coasting whenever possible. And take off from stops slowly, working your way up to speed always staying in the green as much as possible. Don't let the drivers behind you intimidate you, drive like there is an egg between your foot and the gas pedal. I am new to this but have reached 53.1 MPG so far which is darn good for upstate NY weather conditions. Hope you enjoy your car as much as I have so far. The only thing that bothers me about the car is when cold (like sitting over night) the transmission feels like it is slipping for a few moments before engaging. From what I have read, that is normal for the Insight but feels odd to me.
 

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I drive back and forth from Springfield MA to Hartford CT..

Ditch the cruise control, control the pedal with your foot, the cruise control wants to keep your car at the same speed and will sacrifice MPG in doing so. For New England hills, leave it off.

When going up and down the hills...going down, let the car accelerate, going up let the car decelerate until you have to apply more pressure to maintain speed.

Example, at top of hill going 57, let car speed up going down the high, say to like 65, while maintaining 60 to 90 MPG, then when going up next hill, let the car decelerate back to 57 and then apply constant pressure to keep car at 57. It takes some practice, but if you can average 50MPG going up the hill you will be in good shape. Use some of that momentum to get back up the hill, eventually you will have to accelerate unless there is more hill going down than going up, if that if the case you can get some great MPG, but on the return it will average out in reverse.

Stay under 65 and if possible under 60. 55 to 60 is good with some spurts (going down hill to 65/70)

You will not get better MPG going faster, try and keep the revs under 2000 RPM at highway cruising and watch your real time MPG display. Slight differences can pay big dividends.

If you drive the same commute every day, learn the road's little secrets. Nothing is really flat in New England, so knowing what's coming up you can plan ahead to maximize MPG.

I don't use econ mode, monitor tire pressure (keep at recommended or higher)
 

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I've been using all the ideas listed here and they really do work, and often work very well!

My biggest challenge in getting to high mpg has been to learn patience. Most especially when accelerating. What has been helpful is to use the real time - mpg slider to moderate my urge to get up to speed. What I do is accelerate with traffic to close to 30 mph, then reduce acceleration rate to 45 - 55 mpg on the slider. Samething on hills - use the throttle to hold the slider in the 75 -100 mpg range on the down grade, and then at 50 mpg for the up grade. Mostly I let the mph take care of itself and seek to get the most benefit I can from gravity.

Best mpg is when coasting (150 mpg on the MID). Coasting distance can be increased with a very slight pressure on the throttle (keeping the gasoline icon dark -energy flow screen - ev mode), but this will run down the battery. But that can be ok if there is a downgrade up ahead which can be used for battery regen via gently riding the brake.

Best speeds for high mpg is 30-50 mph range, with around 38-44 appearing best of the best. I use econ on most of the time. Econ on makes the throttle less sensitive and helps me run close to 100 mpg vs 70-75 mpg at various points on my trip. Econ off is said to reduce the battery's "affinity" for chargeing and dischargeing, hence with it off, there should be some delay in mpg killing forced regen when hill climbing, or when maintaining steady speed on flat terrain after a battery draining period of acceleration.

When all this becomes one's habitual way of driving, better vs worse mpg seems to be most greatly influenced by traffic, the luck of a green light, outside temperature and tire roll resistence. Less traffic is better then more traffic. Warmer temps. are better then colder. Higher tire pressures better then lower. Dry roads better then wet. Smooth and newly paved better than old and bumpy. Battery fully charged (level 5 or 6) vs less (level 4 or 3).
 

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When all this becomes one's habitual way of driving, better vs worse mpg seems to be most greatly influenced by traffic, the luck of a green light, outside temperature and tire roll resistence. Less traffic is better then more traffic. Warmer temps. are better then colder. Higher tire pressures better then lower. Dry roads better then wet. Smooth and newly paved better than old and bumpy. Battery fully charged (level 5 or 6) vs less (level 4 or 3).
yep; most influences we are helpless exposed to, have much more impact on fuel consumption than all those technical gimmicks which are nice to look at but sometimes draw off the drivers attention to look better on traffic instead off little screenies or HUD´s ;)

here in germany many driving instructors tells the young accelerating quick with flooring the pedal gives better mpg; driving many years and much but never do this except i´m forced to.
...could also be a reason why Hybrids are so rare in our country....people with much milage per year take a TDI or common rail Diesel and rushing the highway with 100 and more mph....a Prius driver with 80mph seems pitiful.
find this a scandal for a country which claim leadership in worlds eco affairs
 

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yep; most influences we are helpless exposed to, have much more impact on fuel consumption than all those technical gimmicks....
Yes good point. I am one who is a believer in the development and utilization of technical skills. My thought is that the person with great technical skills will do better than those with less skill, provided there is equal exposure to those "most influences we are helpless exposed to."

..here in germany many driving instructors tells the young accelerating quick with flooring the pedal gives better mpg.....
I believe such an instruction is technically incorrect and should be stopped, untill and unless technical information can be developed to demonstrate its accuracy.

...a country which claim leadership in worlds eco affairs
A minority here in America have learned the details of your wonderful public/private financing scheme that has put so many solar collectors on so many houses. Some seek to imitate / apply the concept here. I have noted Merkel's decision to shut down certain nuclear power plants, after the terrible news from Japan. I note also her recent decision to extend scrutiny to many other nuclear power plants. I did not know of Germany's claim to eco leadership, but I think that Germany has every right to be making such a claim !
 

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so hessebauer, in your experience what does a jetta tdi AVERAGE at 100mph..

so hessebauer, in your experience what does a jetta tdi AVERAGE at 100mph..

Jetta is very rare in europe as you can see .... most drive Golf,Passat or Polo
Übersicht: Volkswagen - Jetta - Spritmonitor.de

für the 1,9ltr TDI which is widely used in passat for the agents and salesmen i would say about 38mpg at constant 100mph; i can understand them better driving fast a Diesel than a Hybrid but ecological it wozld be wiser to set a general speedlimit as in your and most of our neighbour countries.
it´s soften really dangerous on 2line Highways where the first is always full of trucks to drive with 70mph and such "Idiots" come from a distance with blinking high beam and sometimes 120mph or what the car even runs before it regulate down at about 150mph depending on car.

@moviemike
we drove mostly shifters here tehrefore flooring the pedal for fast acceleration and shift very early could be also very efficient; think/hope :D they tested this out. As some Insight drivers here mention they did´nt notice some mpg differences if they drive with econ on or out, in S mode or shifting with paddles,accelerate only in green or floor pedal to reach earlier the desired speed; could´nt it be that on acceleration flooring the pedal only to a rpm that gives good torque and power (powercurves) say 3500rpm and than shifting with paddles can beat the cvt automatic in mpg at the same acceleration ?
i think so because in the driver manual are the shift points listet.

last theme...
it´s of topic therefore only a few points...
Merkel lies just as well as all politicians who try to remain in power....
last year ! she decided to negate the decision of nuclear exit in 50years by the forerunner government and a few days after Fukushima she turns around again... ok we know where she´s coming from and in which school and what teacher ; the old communists in DDR and Russia would be or are impressed of such a career ;)
our "wonderful public/private financing scheme" as you say is abused since Kohl get´s the reunion and France/England and others fears the new big Teutonic....the deal was in end: we get a bankrupt state with total ruined and uncompetitive economics plus giving up our hardest and best ambassador in the world; the Deutsche Mark ...... the € experiment impose on complete different countries with different mentality and more else different economics strength ended up in a disaster that what many alerter´s telling us. the richer gets richer and the poorer gets poorer, the shear is drifting fast apart and more and more angry people stand with clenched fist´s under the blanked feeling and knowing that something is going very wrong....many interesting more in history and comes to the conclusion it must be a new versailles reparation act.
in short; as long as germany spends money the € will remain but no day longer..... the frogeaters keep still as long as they have to pay less than germany but their youth is much more agressive than our tamed one.

so i go swimming in sole water, great but expensive.... 8€ for 3hours with short lines and many old people.....they have the money in germany driving big mercedes and SUV´s with bad eyes like a snail ! not the people with kids in the 30-50´s.
 

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The best hwy mpg ever!

20K miles on the car, broken in now. Spring/Summer time driving on the highway I've achieved 56 MPG. Not what the meter is reading (58.6MPG); but calculated from actual mileage and fuel fill up.

Simple tip, Econ ON, 64 MPH. Keep it at 64 MPH using cruise control in Econ mode. Windows cracked, A/C off is preferable.


...Something about this car at exactly 64 MPH will achieve the best Fuel Economy at the highest rate of speed.
 

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20K miles on the car, broken in now. Spring/Summer time driving on the highway I've achieved 56 MPG. Not what the meter is reading (58.6MPG); but calculated from actual mileage and fuel fill up.

Simple tip, Econ ON, 64 MPH. Keep it at 64 MPH using cruise control in Econ mode. Windows cracked, A/C off is preferable.


...Something about this car at exactly 64 MPH will achieve the best Fuel Economy at the highest rate of speed.

hm, given optimal shiftpoints are from 5 to 6 at 50mph and from 6 to last stage 7 at 55mph....plus a bit more rpm´s to come in optimal conditions for the engine; yep 60-70mph .
guessing the rpm´s are about 2000 ? take a look at the power curves at that rpm (2000-2500) and notice the still light increasing torque and power of the engine and still additional torque/power from the e-motor which give out the steepest power/torque output.....the same behaviour is at 4000-4500rpm; therefore i would never floor the pedal more than to 4500rpm for best acceleration; above that there is a effiency loss.
 

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hm, given optimal shiftpoints are from 5 to 6 at 50mph and from 6 to last stage 7 at 55mph....plus a bit more rpm´s to come in optimal conditions for the engine; yep 60-70mph .
guessing the rpm´s are about 2000 ? take a look at the power curves at that rpm (2000-2500) and notice the still light increasing torque and power of the engine and still additional torque/power from the e-motor which give out the steepest power/torque output.....the same behaviour is at 4000-4500rpm; therefore i would never floor the pedal more than to 4500rpm for best acceleration; above that there is a effiency loss.

The Rpms are more closer to 2500 RPM, which you would expect to be not very effective, but reguardless, it's the sweetspot. Exactly 64 MPH.
 

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Back over a year ago when the I2 first came out, someone did the following test to determine the best acceleration rpm for maximum mpg. The test was from a standing start, accelerate at as steady an rpm as possible, for about a 1/4 mile to a speed of around 40 mph. Something like six steady rpm's were tested, I think they were something like 1.8k, 1.9k, 2.0k, 2.1k, 2.2k, & 2.4k. My memory was that 2.0k was best mpg 2.1 slightly better than 1.9k and the biggest mpg drop off at 2.4k.

I probably don't have the numbers or proceedue exactly correct, and there may be problems in the proceedure itself. But it does give one a "feel" for most effecient acceleration and cruising rpm.
 

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Another tip

Hi,

I just got my 2011 Insight this past weekend and was hoping an experienced Insight owner could give some MPG driving tips. I generally keep the Eco Assist green as much as possible and always drive with the Econ button enabled. Most of my commute is on i495 on Long Island and I use cruise control to keep it at 55 for most of the way or slower depending on traffic. Coming home it's bumper to bumper sometimes so I exit and drive on service roads to escape the traffic however the service roads have stop lights and is very hilly at times.

I'm not sure what provides for better MPG, the bumper to bumper traffic or hilly service road and stop lights.

Also, at stop signs how do I disable the auto shut off when I'm just briefly stopping and then going as opposed to sitting at a light? I figure for stop signs it probably wastes fuel for the engine to stop/start for such a brief moment.

Thanks
When you get to your destination and the engine is in autostop, turn the key to off. This shuts the engine down completely. Then shift to park and then you can remove the key and unlock the doors. If you shift to park in autostop, the shifter goes thru reverse and the engine will go on again, only to be shut down again.
 

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"Also, at stop signs how do I disable the auto shut off when I'm just briefly stopping and then going as opposed to sitting at a light? I figure for stop signs it probably wastes fuel for the engine to stop/start for such a brief moment."


I just slip the transmission into S mode if I anticipate the need for instant acceleration like briefly stopping at a stop sign or yield sign. I also use S mode if I am sitting in traffic waiting for a hole to open up to turn left. Also helps when I pull into the garage and it keeps from shutting the engine down before I pull up far enough to get the garage door down. I used to drive a Civic 5 speed so I'm still retraining my right hand and left foot to stop reaching for the shifter and clutch.
 
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