Prius (2010-12) Fuel :: Temps Went Down Right After Switched Wheels
Jan 2, 2013
Last week I switched my wheels and tires out from OEM 15 x 6 wheels with 195/55R15 Good Year Fuel Max tires to 16 x 7 Drag DR9 wheels (16.55 lbs.) with 205/50R16 Good Year Fuel Max tires. ( I wanted a different look) At first I didn't notice any change in mpg's, but that soon changed. The temps went down into the 20's for lows and 30's for highs. I went from 48 - 50 mpg to 41 -43 mpg in just a few days. I assumed that the drop was due to the cold weather. This morning I decided to check the tire pressure in the new tires. 32 psi all the way around. I asked the guys that installed the tires to fill them up to 44 front, 42 rear. I guess that never happened. Anyway, I looked on the sidewall of the tire to check max pressure and I was shocked (51 psi). I ran 44 front, 42 front on my old set, because that was what I was advised to do.
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While most of the emphasis I've seen on improving fuel economy seems to focus on warming the car up quickly in cool/cold weather, I seem to be experiencing significant mpg drops at the other end of the spectrum.
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I knew when I bought my car it wouldn't get optimum mpg as no car would with the many short trips I have to make every day but I have 5000 miles on it already and have averaged approx 46 with all the city and highway combined.
I took it into Toyota last week for the tire rotation and ever since it has been horrible. There were 120 miles on the tank and I refilled because I couldn't stand to see it staying around 39 on the computer. I have never seen that before. I checked the tired and they had brought them down to 32psi so I put then back to 40/38 and refilled.
Not noticing much of an improvement, sadly. Hovering at 40 mpg still. Weather has changed a lot. Temps much higher daily mid 80s to low 90s. This is my first summer with the car and yea the ac has been on nonstop with the higher temps.
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Typically here in the Phoenix area the coldest it gets in the morning is mid to upper 30s for about 2-3 weeks in dec/jan for the low and 50s for the high. Half of November, Jan, Feb & March temps are around 40s for the low & upper 50s-60s high
With these temps is it worth grill blocking?...and how much of a MPG gain would I get?
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Grill blocked today for the first time and have a couple questions.
Temps have been dropping more these last 3-4 days and have noticed my MPG dropping as well so I thought I'd try grill blocking.
Tempts have been and will be high 30s-low 40s in the morning and upper 50s to mid 60s for the high.
At first I just wedged the pipe insulation and drove one trip. I didn't feel comfortable that it would hold for the long haul so I added zip ties.
I used two pieces of pipe insulation 1/2 inch copper / 3/8 inch iron. Up close it looks like 2/3 or 3/4 of the grill is covered.
My two questions:
For fWT, at what temperature should it not exceed?
At what outside temperature should I remove the pipe insulation? In the Phoenix area, temperatures rise in March and sometimes we will have a short period of warmer than normal temps in February. I just want to make sure I do not cause overheating.
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I have a 2012 Prius v, and over these past few weeks I have gotten the worst gas mileage ever. The car was recording mileage at about 35 mpg, but actual has been closer to 32. Yes, I know that it's because Wisconsin has bee recording temps. in the zero or below zero range; but it's still pretty discouraging. In summer I get the normal Prius ratings for mileage ( about 44). How to increase my winter mileage?
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Winter temps are dropping my mpgs from 51-53 mpg to the 44-47 mpg range. Snow, rain, slush puts drag on the car, as well as temps in the 20-40s causing the ICE to run more during warmup and during the 15 mile trip I make daily. Also mpgs in town on 1-3 mile trips are dropping into 29-33 mpg range. I guess the Prius isn't made to thrive in cold temps. I don't know if there is much I can do about it. I did remember to raise the pressures in my tires which has dropped also.
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I have a 2010 Prius 4. The heated seats are real hot when first switched on. After about 3-4 min the passenger seat appears to either switch down to a low setting or switch itself off (can't really tell if it's on a low setting or if it's off completely). The light on the switch remains on.
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Fuel mileage dropped from 52 to 40 on several hot days and I heard a constant loud hum. In the shop tomorrow.
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Was getting around 52.5 MPG in warmer weather, changed the tranny fluid and normally people report an increase in MPG. We're now getting around 50.5 MPG, so a 2 MPG loss. In addition, temps have gone from around mid-80s to mid-60s. Wondering if that would explain the MPG drop?
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Noticed a weird metallic rattling noise coming from the transmission when switched to N with the engine running and the car is stationary? Almost like the gears are rattling inside while in N position. I took it to the dealer and their Prius guru said this is normal characteristic of eCVT....
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I purchased a brand new 2013 Prius 2 last October and I'm loving it so far.
However, I notice that even if it's slightly warm outside, and I have my cabin temp set at a higher temperature than outside, the vent blows cooler air.
For example, the other day it was 65F outside. Since it was warmer than usual, I turned down the cabin temperature to 65F as well. It was nice and cool, but a little TOO cold. So I turned it up to 70F. It was still blowing cold air. I had to turn it up to 72F before it was warm enough to feel comfortable.
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To install my FLIR system I need a 12V power supply, ideally switched with my Gen III's ignition switch. Where in the engine compartment can I find that?
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I just bought a 2010 Prius II and was wondering what size wheels will fit on it. What is the minimum offset I can go with a 17x8 without having the tire scrape the fender when I turn the wheel all the way to make u-turns?
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Had my 2010 Prius in for oil change (at Ford) and they noticed slight amount of seepage on one of the wheels. unfortunately, i did not pick up the car until several hours after the service dept closed so still waiting to get some details but wondering
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I have a 2011 Prius. I put 15" aftermarket summer wheels on it and a vibration appeared The wheels and tires have been rebalanced many times. Wheel alignment has been done, wheels replaced, tires replaced but the vibration is still there. I am now back to the OEM and the vibration is still there.
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Yesterday when I jacked up my car to switch to winter tires I hear this clicking sound, every stroke I turned the jack it will make that sound and it continues until my wheel is off the ground then it will stop. It only came from the rear 2 wheels and it happened when I jacked up the front and the back (more noticeable when jacking up the back).
I continue anyway, but today when I am driving down a parking lot (down hill turning) I hear this bumping sound from the back (sounds like bouncing basketball), it will go away if I stop but continues once I start driving again. I stop the car on flat ground and examined the tires and found nothing odd. Then when I restart the car the sound went away.
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My 5 month old 2011 Prius Two ran out of windshield wiper fluid yesterday. This was somewhat surprising, since I haven't used the cleaner that much - and I would assume that the dealer filled it up when I bought the car. So I added some more (even used the "windshield wiper dipstick" to make sure that I didn't overfill). I also used a funnel, so no fluid spilled anywhere. I then turned the car on, and made sure that the front and rear wiper/cleaners worked - everything was fine.
But when I got out of the car, I noticed a small amount of liquid on the ground, near the front passenger wheel. I saw small amounts of liquid dripping off the car. So I called my dealer, said I thought the plastic wiper cleaner container had a leak, and they said bring the car in. When I got to the dealer, the attendant said: "Is it the front right of the car?" (i.e. where the liquid was coming out, I hadn't even mentioned where I had seen the leak). I said yes.
He then asked me to run my front wipers with the cleaner coming out for about 15 seconds (longer than one would usually do that). I then got out the car, and he showed me lots of liquid that "appeared" to be leaking out the container; however, the attendant said that was just runoff of the excess cleaner. He said if there is extra cleaner it gets diverted mostly to the front right, and a little to the front left. He said he had a 2010 Pruis, and it does the same thing. He said if you're driving on the highway, you'd obviously never noticed it. So you only see it when you use the wiper/cleaners when parked (not usually the case). I mentioned that I had never noticed this in my previous cars (all Saturns). He said he thought the Saturn might have diverted the fluid more towards the middle underneath. But since the Saturn actually required a key to turn on, I don't recall ever testing the wiper/cleaners, after refilling with more fluid (it's just that it's so easy to turn on a Prius...
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I have been driving 2013 model for five months. I noticed that whenever any front wheel rolls over cat-eye on the road and any sudden small bump then it generates noticeable clicking sound. I went to the dealer and they said it is normal and comes with all such cars.
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I tried to reset my TPMS light using the procedure in the owner's manual after installing my snow tires on the OEM wheels. Now it looks like there is no effects as the lights will just keep blinking even if i am holding the button down. Does this mean the tire shop broke one of my sensor during the install?
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I am new to the prius 2010.
I filled up last week and I noticed that as soon as a single cell display in the fuel display part has some empty section like 3/4 fuel(single cell) the next day or after that that whole cell disappears without it showing that single cell as being empty.
Around which fuel cell, when displayed, is it important and recommended to fill up gas again, with one cell remaining or two etc.
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