A few questions on improving my MPG

I would reset everything so i knew it was me that got those numbers, including the best avg mpg.

I don't think unhooking the 12volt will help with mpg. You may also loose things like windows auto function and other stuff. I flow with traffic and almost always get half way to a full power bar when taking off.

 

Also don't "try" so hard. You shoot yourself in the foot by accllerating slowly, don't worry about the power bar. I've gotten my best mpg's when I'm in heavy traffic on the highway and your stuck in a pack of cars going like hell one minute then slowing down and speeding up. It seems in those cases when you just consintrating (sorry can't spell) on driving and not concerned with driving for economy the best mpg numbers show up and you say...How'd that happen

 

After 14 months of ownership of a 2010, I went through some "newbie" phases that I've come to recognize is somewhat of a pattern here on PC.

First is the amazed/excited/happy phase to see the big FE numbers you've never encountered before.

Next is the confused stage trying to figure how it all works.

Then comes the research/education phase when you learn the tricks.

This leads to the implementation phase (where the OP is now) of said techniques.

The next phase is dependent on the individual: either you hit the big numbers and are contented or you become frustrated either because of the application of said techniques is too difficult (tons of threads on this) or you don't hit the big numbers you've seen others post.

The next phase is where I am now: turn off the CONS screens and just drive the damn car.

I've found I'm only getting 4-5 less mpg's than what I did trying to P&G, stealth, driving sloooooow, etc. Obviously I sucked employing those since I could only achieved the EPA numbers at best. But I also know there are things out of my control: traffic patterns, terrain, temperatures, wind, etc. My driving experience is much less stressful now. :cheer2: The "chasing big numbers" game was fun, educational, and fascinating...... for a while.

 

This is a very interesting thread as I'm fairly new(brand new to the forum but several month of prius ownership) & enjoy driving the prius very much & especially, although I have much to learn to maximizing fuel. It's all a game in itself & a challenge to outdo my self in order to beat my last or best tank of gas.

 

1) Keep the Prius on the HSI display. Don't worry about the previous owner. Focus on the traffic and the road ahead.

2) Don't disconnect the 12v battery. The Prius onboard computer and black box has Flash memory which will be unaffected if you disconnect the 12vdc battery. However, disconnecting the 12VDC battery will likely reset the radio presets and bluetooth memory.

3) If you want to accelerate faster toggle off "eco" mode and drive the Prius in "normal" mode. You'll get better throttle response in "normal" mode but the "eco" bar label will light up telling you when you are driving efficiently. The most fuel efficient way to accelerate on a Prius is press the accelerator pass the mid way marker on the HSI "eco" bar when while the Prius is going downhill. The least fuel efficient way to gain speed on a Prius is to accelerate while the Prius is going uphill. The *pwr* bar means you are using over 1.9 gallons of gas per hour. The mid point of the HSI "eco" bar means the Prius is using approximately 1.0 gallons of gas per hour.

The cons. MPG meter is based on the consecutive miles for either Trip A or Trip B. When you zeroed out the A or B Trip Odeometer, the Prius will record the cons. MPG and display the last five cons. MPG for that trip odeometer. "Best" mileage can be manipulated to getting a very high MPG by zeroing out the Trip Odeometer after the Prius has warmed upd and then driving it for a short time while it is in its most fuel efficient state, e.g. "glide" cycle or "ev" mode, AND then resetting the Odeometer again to zero to record the cons MPG.

The easiest driving rule to get the best MPG on a Prius is to avoid driving over 40 mph - this however maynot possible of many.

The next easiest driving rule to get the best MPG on the Prius is to give yourself 20% more travel time each time you drive - you'll find your MPG naturally improves when you are not in a rush to get to your destination. Things like coasting to rather than racing to a red traffic light( only to stop) then starts to make sense.

hope this helps

Walter Lee
Cleanmpg.com "Hyper Drive 1"
2010 Toyota Prius III, Blue Ribbon/Dark Grey
Yokohama Avid S33D (50/48)
ScangaugeII
100% grill blocking
18750 miles, overall 60 mpg
last tank 58 mpg

 

I think this is a good summary.