Prius (Gen 3) Fuel :: Consumption With Speed Increase / Decrease
Feb 18, 2011
Since I got Prius I've noticed that driving at 50mph returns 80+mpg , 90+mpg if I let it gently glide at -1mph per 1 mile. As it gradually slows down, the mileage starts to decrease. By the time I get down to 45 mph the mileage shows around 70mpg,
I get down to 40mph, I'm only getting 50mpg. When I keep my speed between 40 and 45 I get about 52-55 mpg for the day. If I keep my speed between 45 and 50, I get 55-60mpg for the day.
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So, my 2005 Gen II Prius went for a scheduled service on Wednesday, 70k miles, Toyota main dealer. They called and said it needed new front brake pads and disks, I was surprised but gave the go ahead. There would occasionally have been a mild squealing sound from the brakes at very low speed so I accepted the pads might need replacing, I was surprised the disks needed replacing but it hard to argue about brakes, especially as I only have the car a year (I'm the second owner and it has a full Toyota service history). It had a "major" service, new spark plugs, new front brake pads and disks.
Since collecting it I've noticed that the engine seems to kick in more often and needs higher revs. The fuel consumption seems higher, normally mid 50's MPG (imperial gallon) now 35MPG. However it hasn't been driven many miles since its been serviced so its a low distance for calculating MPG. I've also noticed that the car seems to slow more quickly without applying the brakes, a regularly driven hill that I coast down at 48kph now only gives 35kph. Also, if I drive on a flat road for a mile or 2 and coast to a stop the front brake disks feel VERY hot, way too hot to touch, drivers side more so that passenger side.
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My Santa Fe is doing a pop sound, like a clunk, when I increase or decrease the speed. It is just one time noise every time the speed changes. Like when the "gravity center" changes from the car front to rear or vice-versa.
I notice already that doesn't happen when it's shifting, neither when I go over a speed bump.
It happens in all gears, but is more noticeable up to the 4th gear.
Also, usually I can hear this noise, a little bit lower, when I'm stopped and change the gear from P to R or vice-versa.
My Santa Fe is a 2011 model with 70K kilometres ....
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2004 Prius and I have lots of static in the AM radio. Some days it is worse than others mostly I am unable to listen to it. If the car is in accessory, the static in the AM radio is not there. As I drive the car the static will increase or decrease based on the proximity to the overhead wires. There are days however where the static will be hardly noticeable. I've owned the car since 2006 and have always had this issue.
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What kind of mpg increase one would see if they were to increase the tire pressures from recommended (35 F/33 R psi) to max (44 F/ 42 R). Any stats of tracked?
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The volume control on my stereo stopped working today. The radio turns on, but the volume controls do not increase/decrease the volume. It is stuck at whatever volume it was at before this problem started. When I turn the volume knob, I see the volume level numbers increasing and decreasing in the upper right corner of the touchscreen, but obviously the volume stays put.
2013 Sonata Limited 2.0T
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Sometimes the volume button on the stereo nor the buttons on the steering button do not increase or decrease the volume. I can turn the stereo on and off - still the same. If I turn the engine off and on - this issue goes away. It's only just started happening in the past few weeks.
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How do you decrease/increase the sensitivity of the Remote Touch Interface (console-controlled pointer)? I'm really missing the mouse pointer I had on my previous ES, and am sick of overshooting my target in making a selection.
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Symptoms : You will hear a squeaking noise from the passenger side of the car. It will increase and decrease with engine RPM, and apparently can be heard from inside the car as well. This noise is from the tensioner bearings failing...which, if gone untreated, will then cause the serpentine belt to fail.
If the belt fails, it seems that the battery light will come on, followed by engine coolant temperature spike (overheat).
Bad tensioner sound:
Confirmed failure shortly after this sound:
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Recently my speedometer has been acting wacko...and continues to do so. Two to five minutes into a trip it will slowly increase or decrease in mph's and randomly stop (or continue) as it pleases regardless of how fast or slow I am traveling. Several mechanics checked it and test drove it and no one could figure it out. The devices they used to check the speedometer indicated it was functioning properly.
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I turned on the climate control this morning when I started the car and tried to change the temperature, then for some reason until the car was warmed up the climate control went to lo and seemed like it was locked there.
Once I the car got warmed up, the climate control worked was normal. It seemed like the increase/decrease controls were locked.
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I had my 2006 Prius (108k miles) shipped (on the back of a flatbed) from Los Angeles to Seattle in mid-October, and I noticed a drop of MPG pretty quickly. I went from 46mpg to now 34mpg over the last month, over 3 tanks of gas.
I have Goodyear tires, but I don't know the make of them (I remember they were 'High Efficiency' or something, meant for fuel economy) and I checked the PSI and it was 36 front, 34 rear. At first I thought it must be the tires but they seemed fine.
Then I thought it was the cold weather, but really the change in temperature wasn't very dramatic (until last week) as I was on the beach in LA where it was typically 65 and the past month in Seattle it would be typically 50-55 (this past week notwithstanding!).
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Recently returned from trip from Austin Tx to Monroe LA. Gas mileage decreased from about 43.3 MPG to 38.5 MPG. A little annoyed by this but I guess I can attribute this to the increased weight in the vehicle. Still taking care in for other thing. Maintenance needed light came on & I assume it may be for a 15,000 mi checkup since it is nearing that mark.
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When I go out to do errands around town (I live right in town) I get horrendous gas mileage. Now, I understand gas mileage is high at the beginning of a trip, but for this long and this high and under these circumstances? I'm getting ABOVE 10l/100km when I have 80% charge available (for americans, that's disgustingly high MPG like, pick-up truck high), AND my foot is completely off the gas. Literally, coasting, or braking, and I'm still sucking up gas. What the heck?
Is this just because it takes a certain amount of time for the engine to run no matter what or something? I still don't see any reason for me to be eating up all that gas when my foot isn't even on the gas AND most importantly, I have charge available. Feels pointless for me to use my car for what I use it for 70% of the time, which is for quick errands around town at low speeds. Thought the prius was suppose to be a superstar for this kind of thing.
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I don't have a lot of data yet, but the last couple of times we had temps over 80F, my mileage took a significant hit - about as bad as when temps are below 20F (more than 10%)... Shutting off the A/C doesn't change things much...
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I am suddenly getting 8 mpg decrease both long and short trips. Rotated tires, checked psi and did an alignment but couldn't find cause. I remember my old car had an engine thermostat and when that was stuck open or close the mpg decreased a lot too.
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What is the hourly fuel consumption for a Toyota Prius at idle? Purpose is keep cabin warm for 8 hours. Would this damage engine?
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Once in awhile, as in maybe once a month or every few thousand miles, I hear a rattling noise in the rear below the car. It is very audible and everyone in the car notice it.
This happen only when I have been in traffic for awhile during which:
1) when battery is running really low from moving at low speed
2) After which the engine is turned on to charge the battery
3) moving low speed with the engine running.
The vibrating noise increases as my speed increase, getting more audible and vibrating faster. After a certain point (maybe 30 mph) the noise stopped.
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I wanted to know that at the moment my prius does not automatically locks the doors when reaching above 20km/hr as its suppose to.
I went through the manual and tried to turn the power button on and pushing the gear in N and pressing the lock button but it didn't work.
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I changed the throttle body , PCV , clean the EGR tube and put new gasket in my Prius B 2010 hybrid.
The car was burn oil 1/2 liter per 1500km and since I changed the throttle body I noticed that the car burn 1/2 liter per 400 km .The job by the dealer.
Is there any problem in the installation?
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Ok I read about replacing a bad or ailing 12v battery (mine was original - 2007 - and resting at 10.1v) and an increase in mpg's. But I didnt expect this kind of increase!
I bought the car 9-14-12 and had been driving it very hypermilishly...lol...and getting 48mpg average.
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