I went to the local dealer at about 6K miles to get the free 5K service. The invoice said synthetic service, so it should be the 0W-20. Now the average mileage since the last fill-up is lower by at least 3-4 MPG. My driving habits haven't changed. I inflated the tires to above 40 PSI. I looked at the oil. It is medium amber colored. (I forgot to look at it before the oil change. )
View 19 RepliesExperienced lower mileage after changing the plugs at about 120k miles?
In the 10 months (23.6k miles) since I had the dealer change the plugs, I have averaged 43.3 mpg overall.
I have an 05 Prius that I bought used. It has 59K miles on it. Recently I took it to the dealer for an oil change. They told me it didn't need an oil change, but did need an air filter. Afterwards, the mileage dropped from about 47 around town to about 42. Had the oil changed a week later, and the mileage is now about 40 around town. The dipstick when cold shows a little above the full mark.
View 15 RepliesWhat is the right mileage to do transmission fluid change on my 2009 prius? Toyota said I don't supposed to do it on that car, never, but i think that's not right. I do lifetime warranty on transmission but still would like to put fresh fluid on transmission. Its about 190dlls at dealer. I currently have 44k miles on it and I am not sure to do it or not..
View 9 RepliesI have a 2005 Prius that I bought about 1 year ago that has about 75k miles. According to the display, I have been getting about 5.5l/100km (~43mpg) up until I did some maintenance in July.
A friend changed the oil, oil filter, and cabin air filter. Also, right around this time I bought a new set of tires. For some stupid reason, I had the idea that it had run flat tires, so that's what I bought & by the time I realized my mistake, it was too late.
Just had my 20,000 mile service yesterday on my Prius Plug In and got 10-15mpg loss in gas mileage today. It seems like ECO mode isn't even working anymore because MPG just drops to 15 MPG when you accelerate pass the half way point.
I'll take it back to dealership tomorrow? It should have only been a oil change and oil filter change. Reading some old threads makes me thing they put in the wrong oil?? It says 0W20 on service contract but not sure if correct.
OK, maybe I'm just spooking myself, but I've been getting poorer gas mileage than usual as of late, like 4 to 5 mpg less. I used to get 30+ when I took my car to work, but lately I've been getting 25 to 26 mpg. I calculated it out and it seemed less still, though I didn't do a very accurate calculation.
The other day, I felt like my ESP was kicking in early because my tires are getting a bit old and bald, so I turned it off for my drive home. I immediately noticed that I felt like more power was available (though that was probably my mind playing tricks) and my average MPG for the trip shot up to the 28.5 mpg range with some spirited driving.
Where the ESP or ASR has caused lower MPG? I replaced my MAF sensor recently because it had gone bad, or at least I was fairly certain it had, but now I'm not sure. I also have coil-packs due in the next few thousand miles or so as well, but this seems sporadic. I diagnosed the MAF (which the car was getting around 22MPG before the change) by disconnecting it. It shot up to the 30MPG range with it disconnected, but thinking back, my CEL as well as the ESP light came on. I'm wondering if my ECU turned off the ESP with the MAF disconnected and that is what increased my mileage, not the bad MAF...
I had made a trip down to Branson Missouri for Christmas, which is about 1000+ miles round trip, and the milage seemed to be slightly lower than normal on the computer, about 23 mpg. I went to Iowa after that for Christmas and filled up my tank once when I was there, I was sure to get 91 octane gas. Then after doing a lot of in town driving it went all the way down to about 11 mpg. It jumped back up to 17.9 as I was driving back up to the Twin Cities and hasn't moved after doing some in town driving since then.
The tank seemed to match the computer as far as how fast it dropped, but I'm curious if there's anything I should be looking for. I have a K and N filter in there, and it's only been used 10,000 miles or so, but I cleaned it anyways, since there were some bugs and small leaves in it (there was also a large black spot on it that didn't look like dust or dirt, more like something oily, if that means anything). I'm planning on filling it up a couple more times and seeing what happens before I start going to my mechanic, but I'm switching jobs and will be driving it for work, so I'd like my vehicle to be running well.
I just bought a 2010 salvage Prius. I have another 2010 I have been driving for 3 years so I am pretty used to the mileage I can expect under different conditions.
When the car is totally warm and I measure the mileage for 15 miles or so I get normal readings of mpg. But with a lot of 2-3 mile trips during the week I am getting about 10mpg less than usual compared to my other 2010.
I am in the market for a used Gen III regular Prius. I know that battery in Gen III is smaller in size and weight, so energy density is greater. That's great. But I wonder if you've seen high mileage (>200K) Gen III owners experience battery performance deterioration, like someone experienced in Gen II.
My 2004 with 220K miles only get 44mpg in this summer temp. (I drive it a little bit aggressive, use AC, and don't care much about hypermilling) I think at least partly it is due to weaker HV Battery. I can clearly feel that now it is easier for engine to rev very hard when accelerate at 50 mph. That's not the case before.
When I bought the car in 2009, if I had 4 bars on my traction battery at night, it would have them in the morning. Now I can leave the car for 2 hours in moderate weather. When I drive off, it will show 4 bars but driving in eco mode w/o ac, it will drop to 2 within a mile and stay there for several miles before it starts to charge again. My overall fuel economy has dropped 10%.
View 19 RepliesWell been playing with all the mode to see what they do and the one thing I have noticed is I get worst mileage under ECO Mode. Why it doing this.
View 19 RepliesSo, I was in Wash. State for a while this month and rented a Prius. I decided to check some mileage on mountain roads, and here's what I got. All of these are indicated by the computer, so they are probably 5% or so high. Unfortunately, I did not see either the maximum incline or average incline of these roads posted anywhere, so unless someone else knows them, these numbers are not worth too much scientifically:
UPHILL:
Going uphill on I-90 to Snoqualmie Pass from the West (from Seattle), at 70 mph (the speed limit), fairly steady, with a few decreases for traffic and curves: 18.6 mpg.
Going uphill on US 97 to Blewitt Pass from the north at 50 mph, also the speed limit: 27 mpg.
Going uphill on the Olympic National Park road to Hurricane Ridge, speed limit varying between 35 and 25, with a couple of sections as low as 15 mph: 22.1 mpg. (Maximum incline here might have been 6 or 7 percent).
On the Hurricane Ridge road, I reset the Trip Meter A about a mile from the top (interestingly both segments of the uphill trip registered 22.1).
DOWNHILL, mostly:
The Hurricane Ridge downhill produced an interesting number, because I didn't reset the thing at the top, so I had a mile of 22.1 mpg at the beginning. You go down for about 18 miles, losing about 5200 feet of altitude to nearly sea level (Strait of Juan de Fuca). We kept driving, and at 24.7 miles (so about 6 miles of driving near sea level), the mileage gauge still showed 99.9 mpg. (I took a picture, but it's too fuzzy to put in here.) It was a couple of more miles before I noticed that the trip mpg was down to about 91.
Temps average maybe around 10-15F in the winter so mileage won't be great. Tires are up, grill is blocked. We're getting about 42-43 on the HSI which means about 40 mpg in reality (I've checked this many times and Toyota is off by 3 mpg on average in our car). But Mike in Maine shows up with a 60+ mpg in 15F temps, and I know my fellow Alaskan, Spiderman, is getting 50+ easily. My commute is more highway than stop and go. I don't use P&G but I'm very gentle with the go pedal. I feel that I should be getting closer to 50 here, even with the temps. Is this too much to ask? Maybe it is...
View 12 RepliesMy prius is almost 5 years old and has 88K Klm (49K Miles) My battery has gone down to one bar of late. This never happened until recently, never went below two. The bars seem to fluctuate up and down much quicker than before. My mileage is slightly down but it could be because of other reasons. Does it seem that there is something wrong with the battery? No warning lights are coming on
View 14 RepliesI have 2600 miles on my 2012 mdl II. A month old. I have been averaging 47.5mpg since day one based on miles driven and gas put back in tank at each fill up. I have used only Mobil bottom 87 oct gas.Last fill up got me 48.2, very nice, then I filled up with mid grade 89 oct as it was all I could get then. The next day I was in the dealer for my 1000 mile checkup. when I got out my battery was down to 25%, okay no biggie. Then from there on out I notice my mpg changed alot. The comps used to read 49.1-50.1. Now it reads 42.2-44.1. I drive the same way and my 85 mile round trip to work hasn't changed. My first fill up since the dealer, got me 45.0 mpg. wow a big drop off.
View 4 RepliesI commuted to LA 2-3x a week. The mileage on my car is now at 90k. I have had an average of 40 mpg since new, but suddenly it began to drop. We took it to our local Toyota dealer and was told it was most likely a cable that needed to be cleaned. That was $160. It didn't work.
View 10 RepliesThe humidity has an affect on my MPG. I noticed that my MPG went from 49 - 52 MPG down to 44 - 46 MPG when the heat & humidity started here in June. Yesterday a cold front came through and the humidity dropped. I filled my tank up and noticed my MPG is back up to 49 MPG, so the only thing that is different is the humidity. The cold & humidity does affect the MPG (approx 4 - 6 MPG).
View 4 RepliesI 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...
View 19 RepliesGas mile indicator was showing 54 miles when we went to fill up the gas. Gas indicator is at 1/2 full, but indicator is still showing 54 miles to empty tank.
View 5 RepliesI am using a 2012 Prius and I was running around 23KMpL average. For sometime I am seeing my mileage around 17 - 18 KMpL. What could be the reasons for this ?
The only change happened in between is that I had a accident which I had to replace the front buffer.